refactor(yaml): replace anchors with ref tags

templates/gitlab-ci-gitleaks.yml

@@ -233,7 +233,7 @@ gitleaks:
   variables:
     GIT_DEPTH: 0
   before_script:
-    - *gitleaks-scripts
+    - !reference [.gitleaks-scripts]
     - install_ca_certs "${CUSTOM_CA_CERTS:-$DEFAULT_CA_CERTS}"
     - mkdir -p -m 777 reports
     - install_gitleaks_rules