chore(deps): update pre-commit hook gitleaks/gitleaks to v8.21.3

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

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/gitleaks/gitleaks
-  rev: v8.21.2
+  rev: v8.21.3
   hooks:
   - id: gitleaks
 - repo: https://github.com/pre-commit/pre-commit-hooks