test: handle dynamic manage selectors

[tenthe]

Purpose

This PR fixes three failing nightly Cypress tests after pipeline manage actions switched to resource-specific selectors:

• renamePipelineTest.spec.ts
• testGroupManagement.spec.ts
• testUserRolePipeline.spec.ts

Changes

• Escapes dynamic manage selectors so resource names containing spaces are handled correctly.
• Updates the pipeline rename test to select the manage action using the pipeline name.
• Verifies denied permission management through the current manage dialog instead of the removed legacy selector.

Remarks

PR introduces (a) breaking change(s): no

PR introduces (a) deprecation(s): no