cluster: make two configs in cdc spec editable

[amyangfei]

What problem does this PR solve?

gc-ttl and tz should be editable in the command line parameters of cdc server

What is changed and how it works?

add vaildate:xx:editable to these two parameters

Check List

Tests

• Unit test
• Integration test

Release notes:

Make `tc-ttl` and `tz` editable in cdc server spec

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• AstroProfundis

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

The full list of commands accepted by this bot can be found here.

Reviewer can indicate their review by writing /lgtm in a comment.
Reviewer can cancel approval by writing /lgtm cancel in a comment.

[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: 925d3b2

[codecov-commenter]

Codecov Report

Merging #1380 (925d3b2) into master (2faf4c9) will increase coverage by 28.86%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #1380       +/-   ##
===========================================
+ Coverage   25.33%   54.20%   +28.86%     
===========================================
  Files         265      290       +25     
  Lines       20517    22400     +1883     
===========================================
+ Hits         5198    12141     +6943     
+ Misses      14519     8350     -6169     
- Partials      800     1909     +1109     

Flag	Coverage Δ
cluster	41.88% <ø> (?)
dm	24.61% <ø> (?)
integrate	48.74% <ø> (+33.16%)	⬆️
playground	13.80% <ø> (?)
tiup	15.57% <ø> (ø)
unittest	21.64% <ø> (ø)

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

Impacted Files	Coverage Δ
pkg/cluster/spec/cdc.go	75.75% <ø> (+72.72%)	⬆️
pkg/cluster/operation/destroy.go	56.61% <0.00%> (ø)
components/playground/instance/instance.go	45.45% <0.00%> (ø)
pkg/cluster/operation/telemetry.go	0.00% <0.00%> (ø)
pkg/cluster/operation/action.go	64.55% <0.00%> (ø)
components/playground/instance/pump.go	0.00% <0.00%> (ø)
components/playground/instance/tikv_config.go	100.00% <0.00%> (ø)
pkg/cluster/operation/scale_in.go	58.27% <0.00%> (ø)
pkg/cluster/operation/download.go	36.84% <0.00%> (ø)
components/playground/instance/process.go	81.39% <0.00%> (ø)
... and 210 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2faf4c9...925d3b2. Read the comment docs.