Update the group last modified date when updating a group [when unique group id is disabled]

[ThaminduDilshan]

Purpose

When a group is modified by renaming it's display name, adding a user to the group or removing an user from the group, the group last modified date needs to be updated. This PR fixes that issue by updating the group last modified date on such scenarios.

Note: The SCIM level update is only required when the group unique id feature is disabled. Otherwise the attributes will be stored in the user store.

Goals

Update the group modified time when adding/ removing a user to/ from a group.

Related Issue

• lastModified attribute of the groups does not update wso2/product-is#19244

Related PRs

• Update the group last modified date on user addition/ deletion to the group [when unique group id is enabled] wso2/carbon-kernel#4168

[codecov]

Codecov Report

Attention: Patch coverage is 97.56098% with 1 line in your changes missing coverage. Please review.

Project coverage is 46.44%. Comparing base (c457f30) to head (9b28e2a).

Files with missing lines	Patch %	Lines
...on/identity/scim2/common/impl/SCIMUserManager.java	96.55%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #590      +/-   ##
============================================
+ Coverage     44.46%   46.44%   +1.97%     
+ Complexity     1035      993      -42     
============================================
  Files            41       41              
  Lines          8941     8974      +33     
  Branches       1925     1926       +1     
============================================
+ Hits           3976     4168     +192     
+ Misses         4090     3895     -195     
- Partials        875      911      +36     

Flag	Coverage Δ
unit	31.32% <97.56%> (+2.72%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/12593838234

[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/12593838234
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/12593838234

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/12596878387

[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/12596878387
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/12596878387