Simplify the images being used for testing

.github/workflows/docker-matrix.yml

@@ -13,19 +13,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.12', '3.13.0rc1', 'latest']
-        debian-version: ['bullseye', 'bookworm', 'latest']
-        slim: [true, false]
+        image-tag: ['3.12-slim-bullseye', '3.13.0rc1', '3.13.0rc1-slim', 'latest']
         update-strategy: [update, unlocked-install, latest-install]
-        exclude:
-          # Current installation covered in CI job
-          - python-version: '3.12'
-            debian-version: 'bullseye'
-            slim: true
-          # Current deployment using slim, no need to test.
-          - python-version: '3.12'
-            debian-version: 'bullseye'
-            slim: false
 
     steps:
     - name: Checkout code
@@ -34,35 +23,25 @@ jobs:
     - name: Set up Docker Build
       uses: docker/[email protected]
 
-    - name: Set image tag
-      run: |
-        if [ "${{ matrix.python-version }}" = "latest" ]; then
-          IMAGE_TAG="latest"
-        else
-          IMAGE_TAG="${{ matrix.python-version }}"
-          if [ "${{ matrix.slim }}" = "true" ]; then
-            IMAGE_TAG="${IMAGE_TAG}-slim"
-          fi
-          if [ "${{ matrix.debian-version }}" != "latest" ]; then
-            IMAGE_TAG="${IMAGE_TAG}-${{ matrix.debian-version }}"
-          fi
-        fi
-        echo "Using image tag: ${IMAGE_TAG}"
-        echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_ENV
-
-    - name: Build current Docker image with tests
-      run: |
-        docker build --target test -t zephir-api2:test .
-
+
     - name: Install and update dependencies
       run: |
+        echo "Image tag: ${{ matrix.image-tag }}"
+        echo "Update strategy: ${{ matrix.update-strategy }}"
+
         if [[ "${{ matrix.update-strategy }}" == "update" ]]; then
-          echo "Running normal test with updated dependencies"
-          docker build --no-cache --build-arg IMAGE_TAG=${{ env.IMAGE_TAG }} --target test-update -t zephir-api2:test .
+        
+        echo "Running normal test with updated dependencies"
+        docker build --no-cache --build-arg IMAGE_TAG=${{ matrix.image-tag }} --target test-update -t zephir-api2:test .
+
         elif [[ "${{ matrix.update-strategy }}" == "unlocked-install" ]]; then
-          echo "Running normal test with updated dependencies"
-          docker build --no-cache --build-arg IMAGE_TAG=${{ env.IMAGE_TAG }} --target build-unlocked-test -t zephir-api2:test .
+        
+        echo "Running normal test with updated dependencies"
+        docker build --no-cache --build-arg IMAGE_TAG=${{ matrix.image-tag }} --target build-unlocked-test -t zephir-api2:test .
+
         elif [[ "${{ matrix.update-strategy }}" == "latest-install" ]]; then
-          echo "Running normal test with updated dependencies"
-          docker build --no-cache --build-arg IMAGE_TAG=${{ env.IMAGE_TAG }} --target build-latest-test -t zephir-api2:test .
-        fi
+        
+        echo "Running normal test with updated dependencies"
+        docker build --no-cache --build-arg IMAGE_TAG=${{ matrix.image-tag }} --target build-latest-test -t zephir-api2:test .
+
+        fi