fix: strip quotes from version number

Author: samrose

.github/workflows/test.yml

@@ -66,6 +66,10 @@ jobs:
           echo "result<<EOF" >> $GITHUB_OUTPUT
           echo "$ARGS" >> $GITHUB_OUTPUT
           echo "EOF" >> $GITHUB_OUTPUT
+      - name: Strip quotes from pg major and set env var
+        run: |
+          stripped_version=$(echo ${{ matrix.postgres_version }} | sed 's/^"\(.*\)"$/\1/')
+          echo "PGMAJOR=$stripped_version" >> $GITHUB_ENV
 
       - run: docker context create builders
       - uses: docker/setup-buildx-action@v3
@@ -75,7 +79,7 @@ jobs:
         with:
           load: true
           context: .
-          file: ${{ format('Dockerfile-{0}', matrix.postgres_version) }}
+          file: Dockerfile-${{ env.STRIPPED_VERSION }}
           target: production
           build-args: |
             ${{ steps.args.outputs.result }}