Update pre-commit hook zricethezav/gitleaks to v8.28.0 (#794)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.pre-commit-config.yaml

@@ -60,7 +60,7 @@ repos:
 
   # Scan for secrets
   - repo: https://github.com/zricethezav/gitleaks
-    rev: v8.21.2
+    rev: v8.28.0
     hooks:
       - id: gitleaks-docker