tiup: fix -v/--version argument

[AstroProfundis]

What problem does this PR solve?

Not able to show components' version as the -v/--version was always been processed by tiup. It was introduced in #1158

What is changed and how it works?

Not using cobra's builtin Version field, but define a custom version argument in tiup.

Check List

Tests

• Manual test (add detailed scripts or steps below)

Release notes:

NONE

[codecov-io]

Codecov Report

Merging #1243 (4b87152) into master (ede1182) will increase coverage by 15.96%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #1243       +/-   ##
===========================================
+ Coverage   26.27%   42.23%   +15.96%     
===========================================
  Files         263      254        -9     
  Lines       18684    17729      -955     
===========================================
+ Hits         4909     7488     +2579     
+ Misses      13022     8943     -4079     
- Partials      753     1298      +545     

Flag	Coverage Δ
cluster	38.34% <ø> (?)
dm	25.04% <ø> (?)
integrate	42.23% <ø> (+25.71%)	⬆️
tiup	?
unittest	?

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

Impacted Files	Coverage Δ
pkg/cluster/manager/destroy.go	30.98% <ø> (+30.98%)	⬆️
pkg/repository/store/store.go	0.00% <0.00%> (-100.00%)	⬇️
components/dm/ansible/worker.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/repository/utils/hash.go	0.00% <0.00%> (-81.82%)	⬇️
pkg/meta/err.go	0.00% <0.00%> (-81.25%)	⬇️
pkg/telemetry/meta.go	0.00% <0.00%> (-80.00%)	⬇️
pkg/telemetry/scrub.go	6.66% <0.00%> (-80.00%)	⬇️
pkg/repository/store/local.go	0.00% <0.00%> (-76.48%)	⬇️
pkg/cluster/api/error.go	0.00% <0.00%> (-75.00%)	⬇️
pkg/repository/model/publish.go	0.00% <0.00%> (-71.43%)	⬇️
... and 237 more

---

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[9547]

Another question that's a little bit related, when I'm running tiup dm -v, the output doesn't show dm, does it by design or not:

[AstroProfundis]

does it by design or not

That's not totally by design, but is the expected behaviour. The field is actually the args[0] of the command, if you invoke the tiup-dm binary directly you'll see the difference.

We have some tricks handling args[0] in cluster to show correctly help messages, but they're generally not essential so it could be ok to just leave them alone.

[lucklove]

/lgtm

[ti-chi-bot]

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• lucklove

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[lucklove]

/merge

[ti-chi-bot]

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

Commit hash: af91e65