Potential fix for code scanning alert no. 3: Workflow does not contain permissions (#39)

Signed-off-by: Nathaniel Starkman <nstarman@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: nstarman

.github/workflows/ci.yml

@@ -37,6 +37,8 @@ jobs:
   checks:
     name: Check Python ${{ matrix.python-version }} on ${{ matrix.runs-on }}
     runs-on: ${{ matrix.runs-on }}
+    permissions:
+      contents: read
     needs: [pre-commit]
     strategy:
       fail-fast: false