Description of problem:

The policy-generator-plugin raises the following error when setting policy's evaluationInterval to "watch":

the policy v1-validator-du-policy has an invalid policy.evaluationInterval.compliant value: time: invalid duration "watch"

The error occurs due to the check https://github.com/open-cluster-management-io/policy-generator-plugin/blob/main/internal/plugin.go#L1031 in the plugin code.

Version-Release number of selected component (if applicable):

2.12.0

How reproducible:

100%

Steps to Reproduce:

1. In the PolicyGenerator, set either policyDefaults.evaluationInterval.compliant or policies[x].evaluationInterval.compliant to "watch"
2. Generate the policy
3. ...

Actual results:

The policy generation fails with the error message mentioned above.

Expected results:

The policy should be generated successfully

Additional info: