Define top level Permission for lint-chart.yaml (Chart Lint) workflow

Signed-off-by: aditya7302 <aditya7302@gmail.com>

.github/workflows/lint-chart.yaml

@@ -17,6 +17,10 @@ on:
     paths:
       - "charts/**"
 
+permissions:
+  contents: read # Required by actions/checkout@v4 to fetch the repository contents.
+  statuses: write # Necessary to update the status of workflow runs.      
+
 jobs:
   chart-lint-test:
     runs-on: ubuntu-22.04