Add pre-commit configuration with git-leaks

This commit adds a pre-commit configuration that includes git-leaks
to automatically scan for secrets and sensitive information before
each commit. This helps prevent accidental commits of API keys,
passwords, and other sensitive data.

Features:
- Automatic secret detection using git-leaks v8.28.0
- Verbose output for transparency
- Redacted output to avoid exposing secrets in logs
- Runs on every commit to ensure security compliance

Author: Ramarti

.pre-commit-config.yaml

@@ -0,0 +1,6 @@
+repos:
+  - repo: https://github.com/gitleaks/gitleaks
+    rev: v8.28.0  # latest version
+    hooks:
+      - id: gitleaks
+        args: ['--verbose', '--redact']