Potential fix for code scanning alert no. 3: Workflow does not contain permissions (#29)

Signed-off-by: Stevenson Michel <130018170+thoven87@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: thoven87

.github/workflows/validate.yml

@@ -5,6 +5,8 @@ on:
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-validate
   cancel-in-progress: true
+permissions:
+  contents: read
 
 jobs:
   validate: