feat: set DEFAULT_BRANCH

.github/workflows/lint.yml

@@ -31,4 +31,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           # Will parse the entire repository and find all files to validate across all types.
           # NOTE: When set to false, only new or edited files will be parsed for validation.
-          VALIDATE_ALL_CODEBASE: false
+          VALIDATE_ALL_CODEBASE: false
+          # Default repository branch when running on GitHub Actions
+          DEFAULT_BRANCH: main