acs - version:bump to v1.38.1

[backstage-service]

Backstage release v1.38.1 has been published, this Pull Request contains the changes to upgrade acs to this new release

Please review the changelog before approving, there may be manual changes needed:

• Changelog: v1.38.1
• Upgrade Helper: From 1.36.1 to 1.38.1

Created by Version Bump 14937018861

[BethGriggs]

It looks like some changes are required here, 🔧 Repository: 1.38.x Upgrade Tips may be helpful.

[awanlin]

Gone stale, 1.39.0 is now out, please upgrade to that version.