ci: add buf actions

Author: trim21

.github/workflows/buf.yaml

@@ -0,0 +1,26 @@
+name: Buf CI
+on:
+  push:
+    branches:
+      - master
+  pull_request_target:
+    branches:
+      - master
+    types: [opened, synchronize, reopened]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  buf:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: bufbuild/buf-action@v1
+        with:
+          # Change setup_only to true if you only want to set up the Action and not execute other commands.
+          # Otherwise, you can delete this line--the default is false.
+          setup_only: false
+          # Optional GitHub token for API requests. Ensures requests aren't rate limited.
+          github_token: ${{ github.token }}

buf.yaml

@@ -7,4 +7,4 @@ breaking:
 
 lint:
   use:
-    - DEFAULT
+    - STANDARD