feat: add zricethezav/gitleaks

* https://github.com/zricethezav/gitleaks
* Scan git repos (or files) for secrets using regex and entropy

registry.yaml

@@ -199,6 +199,15 @@ packages:
   description: CLI to create a GitHub comment
   files:
   - name: github-comment
+- name: zricethezav/gitleaks
+  type: github_release
+  repo_owner: zricethezav
+  repo_name: gitleaks
+  asset: 'gitleaks-{{.OS}}-{{.Arch}}'
+  link: https://github.com/zricethezav/gitleaks
+  description: Scan git repos (or files) for secrets using regex and entropy
+  files:
+  - name: gitleaks
 - name: go
   type: http
   url: https://golang.org/dl/go{{.Package.Version}}.{{.OS}}-{{.Arch}}.tar.gz