cluster: delete !#$%&= from init password

[nexustar]

What problem does this PR solve?

• close Avoid special characters in root password generation with --init command #2126

What is changed and how it works?

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

Patch coverage has no change and project coverage change: +30.85 🎉

Comparison is base (7fcde36) 25.57% compared to head (080ca32) 56.42%.

❗ Current head 080ca32 differs from pull request most recent head aaea1e1. Consider uploading reports for the commit aaea1e1 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2136       +/-   ##
===========================================
+ Coverage   25.57%   56.42%   +30.85%     
===========================================
  Files         286      313       +27     
  Lines       30076    33241     +3165     
===========================================
+ Hits         7691    18754    +11063     
+ Misses      21525    12258     -9267     
- Partials      860     2229     +1369     

Flag	Coverage Δ
cluster	45.08% <ø> (?)
dm	26.22% <ø> (?)
playground	15.29% <ø> (?)
tiup	15.93% <ø> (ø)
unittest	22.73% <ø> (ø)

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

Impacted Files	Coverage Δ
pkg/crypto/rand/passwd.go	75.00% <ø> (ø)
components/playground/instance/pump.go	0.00% <0.00%> (ø)
components/playground/instance/instance.go	48.57% <0.00%> (ø)
components/playground/instance/tidb.go	89.66% <0.00%> (ø)
pkg/cluster/operation/upgrade.go	47.14% <0.00%> (ø)
components/dm/task/update_dm_meta.go	87.76% <0.00%> (ø)
pkg/cluster/operation/scale_in.go	52.98% <0.00%> (ø)
pkg/cluster/operation/action.go	64.55% <0.00%> (ø)
...onents/playground/instance/tiflash_proxy_config.go	80.00% <0.00%> (ø)
components/playground/instance/pd.go	74.63% <0.00%> (ø)
... and 220 more

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[kaaaaaaang]

/merge

[ti-chi-bot]

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

Commit hash: aaea1e1

[kaaaaaaang]

/merge