resource_control: allow configuration of the maximum retry time for the local bucket (#8352)

[ti-chi-bot]

This is an automated cherry-pick of #8352

What problem does this PR solve?

Issue Number: Close #8349

What is changed and how does it work?

resource_control: allow configuration of the maximum retry time for the local bucket
- Added config `ltb-token-rpc-max-delay`
- Increased default max delay from 500ms to 1s

Check List

Tests

• Unit test
• Integration test

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.

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JmPotato, niubell, nolouch

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Needs approval from an approver in each of these files:

• OWNERS [JmPotato,nolouch]
• client/resource_group/controller/OWNERS [niubell]
• pkg/mcs/resourcemanager/server/OWNERS [niubell]

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