fix: use full GitHub URLs for Forgejo Actions

Forgejo Actions runner can't find actions in its mirror registry.
Changed all action references from short names to full GitHub URLs:
- actions/checkout@v4 → https://github.com/actions/checkout@v4
- erlef/setup-beam@v1 → https://github.com/erlef/setup-beam@v1
- actions/cache@v4 → https://github.com/actions/cache@v4
- actions/setup-node@v4 → https://github.com/actions/setup-node@v4
- actions/upload-artifact@v4 → https://github.com/actions/upload-artifact@v4
- docker/* actions → https://github.com/docker/*

This fixes the 'repository not found' errors when Forgejo tries
to clone actions from data.forgejo.org.

.forgejo/workflows/production.yml

@@ -29,24 +29,24 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
 
       - name: Set up Elixir
-        uses: erlef/setup-beam@v1
+        uses: https://github.com/erlef/setup-beam@v1
         with:
           version-type: strict
           elixir-version: '1.18.1'
           otp-version: '27.2'
 
       - name: Cache deps
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: deps
           key: ${{ runner.os }}-deps-${{ hashFiles('mix.lock') }}
           restore-keys: ${{ runner.os }}-deps-
 
       - name: Cache _build
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: _build
           key: ${{ runner.os }}-build-${{ hashFiles('lib/**/*.ex') }}-${{ hashFiles('mix.lock') }}
@@ -92,29 +92,29 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
 
       - name: Set up Elixir
-        uses: erlef/setup-beam@v1
+        uses: https://github.com/erlef/setup-beam@v1
         with:
           version-type: strict
           elixir-version: '1.18.1'
           otp-version: '27.2'
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: https://github.com/actions/setup-node@v4
         with:
           node-version: '20'
 
       - name: Cache deps
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: deps
           key: ${{ runner.os }}-deps-${{ hashFiles('mix.lock') }}
           restore-keys: ${{ runner.os }}-deps-
 
       - name: Cache _build
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: _build
           key: ${{ runner.os }}-build-${{ hashFiles('lib/**/*.ex') }}-${{ hashFiles('mix.lock') }}
@@ -162,7 +162,7 @@ jobs:
 
       - name: Upload test results
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: https://github.com/actions/upload-artifact@v4
         with:
           name: playwright-report
           path: e2e/playwright-report/
@@ -175,15 +175,15 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
         with:
           fetch-depth: 0  # Need full history for git operations
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: https://github.com/docker/setup-buildx-action@v3
 
       - name: Log in to Container Registry
-        uses: docker/login-action@v3
+        uses: https://github.com/docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ secrets.REGISTRY_USERNAME }}
@@ -200,7 +200,7 @@ jobs:
           echo "Full image tag: ${TAG}"
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+        uses: https://github.com/docker/build-push-action@v5
         with:
           context: .
           file: k8s/Dockerfile

.forgejo/workflows/test.yml

@@ -32,24 +32,24 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
 
       - name: Set up Elixir
-        uses: erlef/setup-beam@v1
+        uses: https://github.com/erlef/setup-beam@v1
         with:
           version-type: strict
           elixir-version: '1.18.1'
           otp-version: '27.2'
 
       - name: Cache deps
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: deps
           key: ${{ runner.os }}-deps-${{ hashFiles('mix.lock') }}
           restore-keys: ${{ runner.os }}-deps-
 
       - name: Cache _build
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: _build
           key: ${{ runner.os }}-build-${{ hashFiles('lib/**/*.ex') }}-${{ hashFiles('mix.lock') }}
@@ -77,7 +77,7 @@ jobs:
 
       - name: Upload coverage reports
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: https://github.com/actions/upload-artifact@v4
         with:
           name: coverage-report
           path: cover/
@@ -103,29 +103,29 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
 
       - name: Set up Elixir
-        uses: erlef/setup-beam@v1
+        uses: https://github.com/erlef/setup-beam@v1
         with:
           version-type: strict
           elixir-version: '1.18.1'
           otp-version: '27.2'
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: https://github.com/actions/setup-node@v4
         with:
           node-version: '20'
 
       - name: Cache deps
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: deps
           key: ${{ runner.os }}-deps-${{ hashFiles('mix.lock') }}
           restore-keys: ${{ runner.os }}-deps-
 
       - name: Cache _build
-        uses: actions/cache@v4
+        uses: https://github.com/actions/cache@v4
         with:
           path: _build
           key: ${{ runner.os }}-build-${{ hashFiles('lib/**/*.ex') }}-${{ hashFiles('mix.lock') }}
@@ -175,7 +175,7 @@ jobs:
 
       - name: Upload test results
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: https://github.com/actions/upload-artifact@v4
         with:
           name: playwright-report
           path: e2e/playwright-report/
@@ -183,7 +183,7 @@ jobs:
 
       - name: Upload screenshots on failure
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: https://github.com/actions/upload-artifact@v4
         with:
           name: playwright-screenshots
           path: e2e/test-results/