support start playground offline when specify version

[nexustar]

What problem does this PR solve?

tiup playground cant run offline

What is changed and how it works?

do'nt download manifest files from Internet when specify version

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

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• AstroProfundis

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[codecov-commenter]

Codecov Report

Merging #1553 (e431efe) into master (b718fb0) will increase coverage by 30.06%.
The diff coverage is 57.14%.

@@             Coverage Diff             @@
##           master    #1553       +/-   ##
===========================================
+ Coverage   26.30%   56.36%   +30.06%     
===========================================
  Files         266      291       +25     
  Lines       24012    26187     +2175     
===========================================
+ Hits         6316    14760     +8444     
+ Misses      16879     9401     -7478     
- Partials      817     2026     +1209     

Flag	Coverage Δ
cluster	43.93% <0.00%> (?)
dm	26.18% <0.00%> (?)
integrate	50.93% <57.14%> (+34.82%)	⬆️
playground	13.80% <61.53%> (?)
tiup	16.08% <57.14%> (-0.03%)	⬇️
unittest	22.75% <0.00%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
cmd/list.go	41.37% <25.00%> (-0.47%)	⬇️
pkg/repository/v1_repository.go	61.18% <76.92%> (+1.34%)	⬆️
pkg/repository/v1manifest/types.go	81.15% <0.00%> (-2.90%)	⬇️
pkg/repository/v1manifest/local_manifests.go	40.00% <0.00%> (-1.06%)	⬇️
components/playground/instance/tiflash.go	61.98% <0.00%> (ø)
pkg/logger/audit.go	57.89% <0.00%> (ø)
components/playground/instance/tidb.go	84.61% <0.00%> (ø)
components/playground/instance/tikv_config.go	100.00% <0.00%> (ø)
pkg/cluster/operation/operation.go	78.57% <0.00%> (ø)
pkg/cluster/operation/destroy.go	59.88% <0.00%> (ø)
... and 217 more

---

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[AstroProfundis]

LGTM

[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: e431efe