chore: Remove yarn audit check

[gsusmi]

Json output option for yarn audit fails with error for moderate level audit check:

/usr/local/lib/node_modules/yarn/lib/cli.js:92452
  throw err;
  ^
Error: write ENOBUFS
    at afterWriteDispatched (internal/stream_base_commons.js:156:25)
    at writevGeneric (internal/stream_base_commons.js:139:3)
    at Socket._writeGeneric (net.js:785:11)
    at Socket._writev (net.js:794:8)
    at doWrite (_stream_writable.js:401:12)
    at clearBuffer (_stream_writable.js:519:5)
    at onwrite (_stream_writable.js:454:7)
    at WriteWrap.onWriteComplete [as oncomplete] (internal/stream_base_commons.js:103:10) {
  errno: 'ENOBUFS',
  code: 'ENOBUFS',
  syscall: 'write'
}

Yarn recommended solution to query by dependencies doesn't fix this issue in our repo. Removing yarn audit capability in favor of dependabot alerts.

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployments, click below or on the icon next to each commit.

boundary-ui – ./ui/admin

🔍 Inspect: https://vercel.com/hashicorp/boundary-ui/11hkEvLba1ZeccDQjfuKKz1FqQUU
✅ Preview: https://boundary-ui-git-remove-yarn-audit-precommit-check-hashicorp.vercel.app

boundary-ui-storybook – ./addons/rose

🔍 Inspect: https://vercel.com/hashicorp/boundary-ui-storybook/5w2wuzA1ze5gMg3DZs5s1afGBX61
✅ Preview: https://boundary-ui-st-git-remove-yarn-audit-precommit-check-ha-4c2e5c.vercel.app

boundary-ui-desktop – ./ui/desktop

🔍 Inspect: https://vercel.com/hashicorp/boundary-ui-desktop/AdAnZqTPu2pWLaWXDoFNDSqrh14a
✅ Preview: https://boundary-ui-de-git-remove-yarn-audit-precommit-check-ha-aac737.vercel.app

[gsusmi]

Security Audit check got removed in this PR but status checks UI in this PR still show that it is required. Merging should update github workflows.