php-fpm: try storing lane in env

.github/workflows/php-fpm.yml

@@ -97,6 +97,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix: ${{ fromJson(needs.lanes.outputs.matrix) }}
+    env:
+      LANE: ${{ matrix.lane }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -117,14 +119,14 @@ jobs:
         with:
           images: gitea.auvem.com/auvem/wordpress-docker/php-fpm
           tags: |
-            type=raw,value=${{ matrix.lane }}-stable
-            type=raw,value=${{ matrix.lane }}-${{ github.sha }}
+            type=raw,value=${{ env.LANE }}-stable
+            type=raw,value=${{ env.LANE }}-${{ github.sha }}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v6
         with:
           context: .
-          file: ./php-fpm/${{ matrix.lane }}/Dockerfile
+          file: ./php-fpm/${{ env.LANE }}/Dockerfile
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}