fix: tiup uninstall check component exists

[srstack]

What problem does this PR solve?

close #2208

tiup uninstall tidb:v20.1.0                             
Error: component `tidb` is not installed, please use `tiup list tidb` to check

tiup uninstall noexits:v1.0.0                          
Error: component `noexits` is not installed, please use `tiup list noexits` to check

What is changed and how it works?

add check

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:

NONE

[codecov-commenter]

Codecov Report

Patch coverage: 25.00% and project coverage change: +9.69 🎉

Comparison is base (ea3af77) 46.30% compared to head (b36fe1d) 55.99%.

❗ Current head b36fe1d differs from pull request most recent head 43f601b. Consider uploading reports for the commit 43f601b to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2209      +/-   ##
==========================================
+ Coverage   46.30%   55.99%   +9.69%     
==========================================
  Files         319      320       +1     
  Lines       33618    33674      +56     
==========================================
+ Hits        15565    18854    +3289     
+ Misses      16155    12564    -3591     
- Partials     1898     2256     +358     

Flag	Coverage Δ
cluster	44.98% <ø> (+9.75%)	⬆️
dm	26.04% <ø> (?)
playground	15.72% <ø> (ø)
tiup	15.97% <25.00%> (+0.02%)	⬆️
unittest	22.67% <0.00%> (-<0.01%)	⬇️

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

Impacted Files	Coverage Δ
cmd/uninstall.go	66.67% <25.00%> (-4.58%)	⬇️

... and 119 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
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[kaaaaaaang]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kaaaaaaang

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[kaaaaaaang]

/merge

[kaaaaaaang]

/merge