cluster:comment out tidb-dashboard in template

[nexustar]

What problem does this PR solve?

What is changed and how it works?

Check List

Tests

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

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

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

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• kaaaaaaang

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[kaaaaaaang]

/merge

[ti-chi-bot]

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

Commit hash: 03d5106

[codecov-commenter]

Codecov Report

Base: 25.84% // Head: 55.64% // Increases project coverage by +29.81% 🎉

Coverage data is based on head (2c5fc8a) compared to base (0f38c96).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2112       +/-   ##
===========================================
+ Coverage   25.84%   55.64%   +29.81%     
===========================================
  Files         286      313       +27     
  Lines       30058    33193     +3135     
===========================================
+ Hits         7766    18470    +10704     
+ Misses      21423    12533     -8890     
- Partials      869     2190     +1321     

Flag	Coverage Δ
cluster	43.52% <ø> (?)
dm	26.24% <ø> (?)
playground	15.29% <ø> (?)
tiup	16.50% <ø> (-0.02%)	⬇️
unittest	22.77% <ø> (ø)

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

Impacted Files	Coverage Δ
pkg/repository/store/txn.go	56.91% <0.00%> (-2.13%)	⬇️
pkg/cluster/operation/upgrade.go	48.02% <0.00%> (ø)
components/playground/instance/pd.go	74.63% <0.00%> (ø)
...onents/playground/instance/tiflash_proxy_config.go	80.00% <0.00%> (ø)
components/playground/instance/tiflash_config.go	50.00% <0.00%> (ø)
pkg/cluster/operation/pd_member.go	0.00% <0.00%> (ø)
pkg/cluster/operation/scale_in.go	49.53% <0.00%> (ø)
pkg/cluster/operation/telemetry.go	0.00% <0.00%> (ø)
components/dm/task/update_dm_meta.go	87.76% <0.00%> (ø)
pkg/logger/audit.go	57.69% <0.00%> (ø)
... and 213 more

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[ti-chi-bot]

@nexustar: Your PR was out of date, I have automatically updated it for you.

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