[Sync][master -> next][#977]: Add revert API for impersonation configurations.

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🤖 Auto-sync from master

This PR automatically syncs the changes from #977 to the next branch.

Original PR: #977
Author: @Yasasr1
Total commits: 3
Workflow run: https://github.com/wso2/identity-api-server/actions/runs/17383880485

Commits:

6f87a2322c Address review comments.
cb97e8ee6b Bump identity.inbound.oauth2 and carbon.identity.framework version.
890b0577aa Add revert API for impersonation configs.