ci: continue on error on buf lint step in validate workflow

Author: rohilsurana

.github/workflows/validate.yml

@@ -13,6 +13,7 @@ jobs:
         with:
           version: 0.54.1
       - uses: bufbuild/buf-lint-action@v1
+        continue-on-error: true
       - uses: bufbuild/[email protected]
         with:
           against: "https://github.com/$GITHUB_REPOSITORY.git#branch=main"