update API link

Author: ivikramsahu

release-notes/platform.md

@@ -25,7 +25,7 @@ These release notes describe recent changes to Harness Platform.
 ## Important feature change notice
 
 :::danger OIDC ID Token API Access Update (Effective October 20, 2025)
-To strengthen security and reduce potential risks, the [OIDC ID token–related APIs](https://apidocs.harness.io/tag/Oidc-ID-Token) will be made internal to Harness and will no longer be available for direct access.
+To strengthen security and reduce potential risks, the [OIDC ID token–related APIs](https://apidocs.harness.io/openapi-merged/oidc-id-token) will be made internal to Harness and will no longer be available for direct access.
 
 - **Previous behaviour**: OIDC ID token APIs can be directly accessed.
 - **New behaviour**: These APIs can only be used through the Harness Connector for OIDC-based authentication with external platforms (e.g., HashiCorp Vault, AWS).