chore(deps): bump bufbuild/buf-setup-action from 1.9.0 to 1.50.0

Bumps [bufbuild/buf-setup-action](https://github.com/bufbuild/buf-setup-action) from 1.9.0 to 1.50.0.
- [Release notes](https://github.com/bufbuild/buf-setup-action/releases)
- [Commits](bufbuild/buf-setup-action@v1.9.0...v1.50.0)

---
updated-dependencies:
- dependency-name: bufbuild/buf-setup-action
  dependency-version: 1.50.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/proto-registry.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: bufbuild/buf-setup-action@v1.9.0
+      - uses: bufbuild/buf-setup-action@v1.50.0
       - uses: bufbuild/buf-push-action@v1
         with:
           input: "proto"