Bump docker/bake-action from 5.11.0 to 6.0.0

Bumps [docker/bake-action](https://github.com/docker/bake-action) from 5.11.0 to 6.0.0.
- [Release notes](https://github.com/docker/bake-action/releases)
- [Commits](docker/bake-action@v5.11.0...v6.0.0)

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

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

.github/workflows/branch-ci.yml

@@ -99,7 +99,7 @@ jobs:
           cp artifacts/server/jetty-app/build/distributions/server-jetty-${{ steps.artifact_metadata.outputs.deephaven_version }}.tar contexts/server-slim/
 
       - name: Bake
-        uses: docker/bake-action@v5.11.0
+        uses: docker/bake-action@v6.0.0
         with:
           targets: ${{ github.event.inputs.bake_targets }}
           files: server.hcl,server-slim.hcl,server-base.hcl,server-slim-base.hcl

.github/workflows/edge-ci.yml

@@ -104,7 +104,7 @@ jobs:
           cp artifacts/server/jetty-app/build/distributions/server-jetty-${{ steps.artifact_metadata.outputs.deephaven_version }}.tar contexts/server-slim/
 
       - name: Bake
-        uses: docker/bake-action@v5.11.0
+        uses: docker/bake-action@v6.0.0
         with:
           targets: server,server-slim,server-base,server-slim-base
           files: server.hcl,server-slim.hcl,server-base.hcl,server-slim-base.hcl

.github/workflows/release-ci.yml

@@ -31,7 +31,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Bake
-        uses: docker/bake-action@v5.11.0
+        uses: docker/bake-action@v6.0.0
         with:
           targets: server,server-slim,server-all-ai,server-nltk,server-pytorch,server-sklearn,server-tensorflow
           files: server.hcl,server-slim.hcl