fix(ci): add perms (#78)

Signed-off-by: Michael I Chen <michael.chen@aicadium.ai>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: michen00

.github/workflows/validate-scripts.yml

@@ -21,6 +21,9 @@ on:
       - 'tests/*.bats'
       - README.md
 
+permissions:
+  contents: read
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true