*: aggregate the utils package within the client

[JmPotato]

What problem does this PR solve?

Issue Number: ref #8690.

What is changed and how does it work?

Aggregate the utils package within the client.

Check List

Tests

• Unit test
• Integration test

Release note

None.

[JmPotato]

/test pull-integration-realcluster-test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.68%. Comparing base (1265c8c) to head (bbfc968).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8799      +/-   ##
==========================================
- Coverage   75.73%   75.68%   -0.05%     
==========================================
  Files         461      461              
  Lines       72315    72315              
==========================================
- Hits        54766    54733      -33     
- Misses      14053    14076      +23     
- Partials     3496     3506      +10     

Flag	Coverage Δ
unittests	75.68% <100.00%> (-0.05%)	⬇️

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

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lhy1024, rleungx

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [lhy1024,rleungx]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-11 10:38:57.197507473 +0000 UTC m=+266299.388376465: ☑️ agreed by lhy1024.
• 2024-11-12 01:55:43.795652118 +0000 UTC m=+321305.986521107: ☑️ agreed by rleungx.