cluster: support Chrony as NTP implementation

[srstack]

What problem does this PR solve?

close #1696

What is changed and how it works?

support Chrony as NTP implementation

Check List

Tests

• Manual test (add detailed scripts or steps below)
  

• just display the time offset for test
• not display the time offse information if it < 500ms

Code changes

• Has exported variable/fields change

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:

• AstroProfundis

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[srstack]

The new version of the insight tool has passed the test in 1.6.0 1.7.0 1.8.0.

[codecov-commenter]

Codecov Report

Merging #1714 (267d0f3) into master (5dc5a4a) will increase coverage by 0.00%.
The diff coverage is 27.27%.

❗ Current head 267d0f3 differs from pull request most recent head 8a777fa. Consider uploading reports for the commit 8a777fa to get more accurate results

@@           Coverage Diff           @@
##           master    #1714   +/-   ##
=======================================
  Coverage   53.20%   53.20%           
=======================================
  Files         303      303           
  Lines       34301    34299    -2     
=======================================
- Hits        18248    18247    -1     
+ Misses      13909    13908    -1     
  Partials     2144     2144           

Flag	Coverage Δ
cluster	41.41% <27.27%> (-0.04%)	⬇️
dm	24.79% <0.00%> (-0.03%)	⬇️
playground	12.72% <ø> (ø)
tiup	14.57% <ø> (ø)
unittest	21.34% <ø> (ø)

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

Impacted Files	Coverage Δ
pkg/cluster/operation/check.go	49.00% <27.27%> (-1.97%)	⬇️
components/cluster/command/root.go	45.83% <0.00%> (+3.83%)	⬆️

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[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: 8a777fa