Add Gitleaks hook to pre-commit (pals-project#74)

Author: EZoni

.pre-commit-config.yaml

@@ -8,3 +8,9 @@ repos:
       args: [--fix, --exit-non-zero-on-fix]
     # Run the formatter
     - id: ruff-format
+
+# Scan for secret files that should not be committed
+- repo: https://github.com/gitleaks/gitleaks
+  rev: v8.30.0
+  hooks:
+    - id: gitleaks