Bump bufbuild/buf-setup-action from 1.7.0 to 1.8.0 (CosmWasm#1006)

Bumps [bufbuild/buf-setup-action](https://github.com/bufbuild/buf-setup-action) from 1.7.0 to 1.8.0.
- [Release notes](https://github.com/bufbuild/buf-setup-action/releases)
- [Commits](bufbuild/buf-setup-action@v1.7.0...v1.8.0)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/proto-buf-publisher.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3.1.0
-      - uses: bufbuild/buf-setup-action@v1.7.0
+      - uses: bufbuild/buf-setup-action@v1.8.0
 
       # lint checks
       - uses: bufbuild/buf-lint-action@v1