*: add auto sync configuration in creating etcd client (#1240)

[ti-chi-bot]

This is an automated cherry-pick of #1240

What problem does this PR solve?

Issue Number: close #1236

What is changed and how it works?

Add AutoSyncInterval configuration in creating etcd client.

Check List

Tests

• None

Code changes

• None

Side effects

• None

Related changes

• None

Release note

fix the problem that drainer/pump can't work when pd's topology changes

[lichunzhu]

/run-all-tests

[lichunzhu]

/run-integration-tests

[lichunzhu]

/run-integration-tests

[purelind]

/run-integration-tests tikv=release-6.5 pd=release-6.5 tidb=release-6.5 tidb-tools=master

[lichunzhu]

/run-integration-tests tikv=release-6.5 pd=release-6.5 tidb=release-6.5 tidb-tools=master

[GMHDBJD]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: GMHDBJD, lichunzhu

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 [GMHDBJD,lichunzhu]

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:

• 2023-06-27 08:56:54.077278309 +0000 UTC m=+697979.478528750: ☑️ agreed by GMHDBJD.
• 2023-06-27 08:57:32.248095077 +0000 UTC m=+698017.649345518: ☑️ agreed by lichunzhu.

[lichunzhu]

/cherry-pick release-6.1

[ti-chi-bot]

@lichunzhu: new pull request created to branch release-6.1: #1254.

In response to this:

/cherry-pick release-6.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.