.github: use shared CLA action

.github/workflows/cla.yaml

@@ -1,6 +1,6 @@
 ---
-name: "CLA Assistant"
-on:
+name: "CLA"
+on:  # yamllint disable-line rule:truthy
   issue_comment:
     types:
       - "created"
@@ -9,21 +9,15 @@ on:
       - "opened"
       - "closed"
       - "synchronize"
-
+  merge_group:
+    types:
+      - "checks_requested"
 jobs:
-  CLAssistant:
+  cla:
+    name: "Check Signature"
     runs-on: "ubuntu-latest"
     steps:
-      - name: "CLA Assistant"
-        if: "(github.event.comment.body == 'recheck' || github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request_target'"
-        uses: "cla-assistant/github-action@v2.1.3-beta"
-        env:
-          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-          PERSONAL_ACCESS_TOKEN: "${{ secrets.CLA_ASSISTANT_ACCESS_TOKEN }}"
+      - uses: "authzed/actions/cla-check@main"
         with:
-          remote-organization-name: "authzed"
-          remote-repository-name: "cla"
-          path-to-signatures: "v1/signatures.json"
-          path-to-document: "https://github.com/authzed/cla/blob/main/v1/icla.md"
-          branch: "main"
-          allowlist: "authzedbot,dependabot[bot]"
+          github_token: "${{ secrets.GITHUB_TOKEN }}"
+          cla_assistant_token: "${{ secrets.CLA_ASSISTANT_ACCESS_TOKEN }}"