Bump docker/build-push-action from 6.19.2 to 7.0.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.19.2 to 7.0.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@10e90e3...d08e5c3)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ftl-build.yml

@@ -105,7 +105,7 @@ jobs:
         uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd #v4.0.0
       -
         name: Build container and test-compile FTL
-        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 #v6.19.2
+        uses: docker/build-push-action@d08e5c354a6adb9ed34480a06d141179aa583294 #v7.0.0
         with:
           context: ftl-build
           platforms: ${{ matrix.platform }}
@@ -117,7 +117,7 @@ jobs:
         name: Push builder target and push by digest
         if: env.DO_DEPLOY == 'true'
         id: build_docker
-        uses:  docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 #v6.19.2
+        uses:  docker/build-push-action@d08e5c354a6adb9ed34480a06d141179aa583294 #v7.0.0
         with:
           context: ftl-build
           platforms: ${{ matrix.platform }}