Fix the data dir of monitored (#11537)

[ti-chi-bot]

This is an automated cherry-pick of #11537

What is changed, added or deleted? (Required)

Fix the data dir of monitored instance from "/tidb-data-monitored-9100" to "/tidb-data/monitored-9100"

Which TiDB version(s) do your changes apply to? (Required)

Tips for choosing the affected version(s):

By default, CHOOSE MASTER ONLY so your changes will be applied to the next TiDB major or minor releases. If your PR involves a product feature behavior change or a compatibility change, CHOOSE THE AFFECTED RELEASE BRANCH(ES) AND MASTER.

For details, see tips for choosing the affected versions (in Chinese).

• master (the latest development version)
• v6.4 (TiDB 6.4 versions)
• v6.3 (TiDB 6.3 versions)
• v6.1 (TiDB 6.1 versions)
• v5.4 (TiDB 5.4 versions)
• v5.3 (TiDB 5.3 versions)
• v5.2 (TiDB 5.2 versions)
• v5.1 (TiDB 5.1 versions)
• v5.0 (TiDB 5.0 versions)

What is the related PR or file link(s)?

• This PR is translated from: Fix the data dir of monitored instance docs#10684
• Other reference link(s): add topology YAML template #3279

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[ti-chi-bot]

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[Oreoxmt]

/status LGT1 /merge

[ti-chi-bot]

@Oreoxmt: The label(s) status//merge cannot be applied, because the repository doesn't have them.

In response to this:

/status LGT1 /merge

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[Oreoxmt]

/status LGT1
/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 5e05d6c