[Snyk] Upgrade yaml from 2.4.2 to 2.6.1 (#350)

fix: upgrade yaml from 2.4.2 to 2.6.1

Snyk has created this PR to upgrade yaml from 2.4.2 to 2.6.1.

See this package in npm:
yaml

See this project in Snyk:
https://app.snyk.io/org/developer-red-hat-trusted-application-pipeline/project/62358635-6218-4506-9c5b-1ad33a8f5b3b?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

Author: ralphbean

frontend/package.json

@@ -108,6 +108,6 @@
     "react-redux": "^8.0.4",
     "react-router-last-location": "^2.0.1",
     "sirv-cli": "^1.0.12",
-    "yaml": "^2.4.0"
+    "yaml": "^2.6.1"
   }
 }