resource_manager: support set background resource limit

[glorv]

What problem does this PR solve?

Issue Number: Close #8616

What is changed and how does it work?

update kvproto to include pingcap/kvproto#1264 to support set background task resource limit

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has the configuration change
• Has HTTP API interfaces changed (Don't forget to add the declarative for the new API)
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• PR to update pingcap/tiup:
• Need to cherry-pick to the release branch

Release note

None

[glorv]

/cc @nolouch @HuSharp

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.59%. Comparing base (e9714b6) to head (0570784).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8617      +/-   ##
==========================================
- Coverage   77.60%   77.59%   -0.01%     
==========================================
  Files         474      474              
  Lines       61893    61893              
==========================================
- Hits        48029    48028       -1     
- Misses      10320    10325       +5     
+ Partials     3544     3540       -4     

Flag	Coverage Δ
unittests	77.59% <ø> (-0.01%)	⬇️

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: HuSharp, nolouch

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 [HuSharp,nolouch]

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:

• 2024-09-12 07:14:14.335585328 +0000 UTC m=+513324.076009268: ☑️ agreed by nolouch.
• 2024-09-12 07:15:58.370165111 +0000 UTC m=+513428.110589052: ☑️ agreed by HuSharp.

[glorv]

/retest