cluster: increase default timeout transfer leader in upgrade progress

[AstroProfundis]

What problem does this PR solve?

Close #1432

What is changed and how it works?

Increase default timeout of transfer leader from 300s to 600s during upgrade process. Note that user can always set another value as they wish with --transfer-timeout argument.

Also implement -s/--signal argument support for systemd module, but not used for TiKV for now, as the necessary meta needed to validate TiKV versions are not available where it is called, and the change would be too large to be added into a patch release.

Side effects

• Increased code complexity

Related changes

• Need to cherry-pick to the release branch

Release notes:

NONE

[codecov-commenter]

Codecov Report

Merging #1434 (5267a37) into master (7b0c5e1) will increase coverage by 8.35%.
The diff coverage is 33.33%.

❗ Current head 5267a37 differs from pull request most recent head 52f03e6. Consider uploading reports for the commit 52f03e6 to get more accurate results

@@            Coverage Diff             @@
##           master    #1434      +/-   ##
==========================================
+ Coverage   25.23%   33.59%   +8.35%     
==========================================
  Files         264      225      -39     
  Lines       20743    17978    -2765     
==========================================
+ Hits         5235     6039     +804     
+ Misses      14705    10870    -3835     
- Partials      803     1069     +266     

Flag	Coverage Δ
cluster	33.59% <33.33%> (?)
integrate	33.59% <33.33%> (+18.16%)	⬆️
tiup	?
unittest	?

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

Impacted Files	Coverage Δ
pkg/cluster/module/systemd.go	64.00% <0.00%> (+64.00%)	⬆️
pkg/cluster/operation/upgrade.go	22.72% <ø> (ø)
components/cluster/command/upgrade.go	42.10% <100.00%> (ø)
pkg/utils/regexp.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/repository/store/store.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/utils/diff.go	0.00% <0.00%> (-82.50%)	⬇️
pkg/repository/utils/hash.go	0.00% <0.00%> (-81.82%)	⬇️
pkg/meta/err.go	0.00% <0.00%> (-81.25%)	⬇️
pkg/utils/semver.go	5.21% <0.00%> (-80.00%)	⬇️
pkg/cluster/api/error.go	0.00% <0.00%> (-80.00%)	⬇️
... and 236 more

---

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[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lucklove

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[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: 52f03e6