chore(deps): update docker/build-push-action action to v6

Author: plural-copilot[bot]

.github/workflows/cd.yaml

@@ -63,7 +63,7 @@ jobs:
           username: mjgpluralsh
           password: ${{ secrets.DOCKER_ACCESS_TOKEN }}
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: "."
           file: "${{ matrix.dockerfile }}"

.github/workflows/ci.yaml

@@ -110,7 +110,7 @@ jobs:
           username: mjgpluralsh
           password: ${{ secrets.DOCKER_ACCESS_TOKEN }}
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: "."
           file: "${{ matrix.dockerfile }}"