misc/github: bump check-commits action to v2

Author: pennam

.github/workflows/check-commits.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: '📜 Check commit messages format'
-        uses: gsactions/commit-message-checker@v1
+        uses: gsactions/commit-message-checker@v2
         with:
           pattern: '^[^!]+: [A-Za-z]+.+ .+\.$'
           flags: 'gm'