feat: parallelize php7/php8 container builds

Author: mhitza

.github/workflows/production.yml

@@ -9,7 +9,7 @@ on:
   - cron: 00 4 * * *
 
 jobs:
-  ghcr:
+  php7:
     runs-on: ubuntu-latest
 
     steps:
@@ -63,6 +63,24 @@ jobs:
     - name: Push with commit php7-review tag
       run: docker push ghcr.io/${{ github.repository_owner }}/${{ env.CI_REPOSITORY_NAME }}:php7-review
 
+  php8:
+    runs-on: ubuntu-latest
+    steps:
+    - name: GitHub Environment Variables Action
+      uses: FranzDiebold/github-env-vars-action@v2
+
+    - name: Shallow clone code
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+
+    - name: Login to Container Registry ghcr.io
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
     #php8
     - name: Build the container image
       run: docker build . --tag ghcr.io/${{ github.repository_owner }}/${{ env.CI_REPOSITORY_NAME }}:php8 --file Dockerfile.php8
@@ -88,6 +106,20 @@ jobs:
     - name: Push with commit php8-review tag
       run: docker push ghcr.io/${{ github.repository_owner }}/${{ env.CI_REPOSITORY_NAME }}:php8-review
 
+  cleanup:
+    needs: [php7, php8]
+    runs-on: ubuntu-latest
+    steps:
+    - name: GitHub Environment Variables Action
+      uses: FranzDiebold/github-env-vars-action@v2
+
+    - name: Login to Container Registry ghcr.io
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
     - name: Delete old versions of the package, keeping a few of the newest
       uses: actions/delete-package-versions@v4
       with: