Simplify GitHub Actions workflow with standard output syntax

Author: priyanshu92

.github/workflows/loc-update.yml

@@ -42,15 +42,9 @@ jobs:
 
       - name: Check Staged Changes
         id: git-check
-        shell: cmd
         run: |
-          git diff --staged --quiet
-          if %errorlevel% neq 0 (
-            echo changes=true>> %GITHUB_OUTPUT%
-          ) else (
-            echo changes=false>> %GITHUB_OUTPUT%
-          )
-
+          git diff --staged --quiet || echo "::set-output name=changes::true"
+          
       - name: Commit and Push Changes
         if: steps.git-check.outputs.changes == 'true'
         run: |