build(deps): bump docker/bake-action from 5 to 6

Bumps [docker/bake-action](https://github.com/docker/bake-action) from 5 to 6.
- [Release notes](https://github.com/docker/bake-action/releases)
- [Commits](docker/bake-action@v5...v6)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -123,7 +123,7 @@ jobs:
       -
         name: Build
         id: bake
-        uses: docker/bake-action@v5
+        uses: docker/bake-action@v6
         with:
           files: |
             ./docker-bake.hcl

.github/workflows/test.yml

@@ -37,7 +37,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
       -
         name: Build
-        uses: docker/bake-action@v5
+        uses: docker/bake-action@v6
         with:
           targets: image-local
           set: |