feat: Update branch names in CI workflow

Modify the CI workflow to target the 'main' branch instead of the '1.x' branch. This ensures the workflow runs on the correct branch and aligns with the project's main branch naming convention.

.github/workflows/lint.yml

@@ -4,10 +4,10 @@ name: Lint
 on:
   push:
     branches:
-      - 1.x
+      - main
   pull_request:
     branches:
-      - 1.x
+      - main
 
 defaults:
   run: