cluster: support tiproxy

[xhebox]

What problem does this PR solve?

As title. Also fixed meta update for dashboard servers.

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:

Suppor tiproxy for tiup cluster

[codecov-commenter]

Codecov Report

Attention: 194 lines in your changes are missing coverage. Please review.

Comparison is base (9e47d78) 55.88% compared to head (87a6dd8) 54.92%.

❗ Current head 87a6dd8 differs from pull request most recent head 8a2050f. Consider uploading reports for the commit 8a2050f to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2271      +/-   ##
==========================================
- Coverage   55.88%   54.92%   -0.96%     
==========================================
  Files         324      326       +2     
  Lines       34167    34373     +206     
==========================================
- Hits        19093    18877     -216     
- Misses      12800    13214     +414     
- Partials     2274     2282       +8     

Flag	Coverage Δ
cluster	43.74% <6.28%> (-1.14%)	⬇️
dm	25.44% <0.00%> (-0.26%)	⬇️
playground	15.53% <0.00%> (-0.28%)	⬇️
tiup	15.71% <0.00%> (-0.20%)	⬇️
unittest	22.43% <3.43%> (-0.14%)	⬇️

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

Files	Coverage Δ
pkg/cluster/spec/spec.go	83.70% <100.00%> (+0.10%)	⬆️
pkg/cluster/spec/bindversion.go	76.92% <0.00%> (-13.99%)	⬇️
pkg/cluster/template/config/prometheus.go	82.00% <0.00%> (-2.54%)	⬇️
pkg/cluster/task/update_meta.go	75.41% <50.00%> (-8.94%)	⬇️
pkg/cluster/spec/monitoring.go	75.07% <16.67%> (-0.98%)	⬇️
pkg/cluster/template/scripts/tiproxy.go	0.00% <0.00%> (ø)
pkg/cluster/spec/tiproxy.go	2.94% <2.94%> (ø)

... and 25 files with indirect coverage changes

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-25 04:04:44.074399461 +0000 UTC m=+2407481.661509590: ☑️ agreed by srstack.
• 2023-10-25 08:06:42.588115765 +0000 UTC m=+2422000.175225910: ✖️🔁 reset by xhebox.
• 2023-10-25 08:56:35.854972541 +0000 UTC m=+2424993.442082671: ☑️ agreed by srstack.

[kaaaaaaang]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kaaaaaaang

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