support list server configs by admin cli tool

[bowenliang123]

🔍 Description

Issue References 🔗

This pull request fixes #

Describe Your Solution 🔧

• add command list config in admin cli tool , for listing all the server configs, which is useful for checking runtime configs when before/after refreshing the configs of user-defaults or non-user-defaults

Types of changes 🔖

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Test Plan 🧪

Behavior Without This Pull Request ⚰️

Behavior With This Pull Request 🎉

Related Unit Tests

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Checklist 📝

• This patch was not authored or co-authored using Generative Tooling

Be nice. Be informative.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 45 lines in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (8056235) to head (1c1d58d).
Report is 8 commits behind head on master.

Files with missing lines	Patch %	Lines
...g/apache/kyuubi/client/api/v1/dto/ConfigEntry.java	0.00%	17 Missing ⚠️
...e/kyuubi/ctl/cmd/list/AdminListConfigCommand.scala	0.00%	7 Missing ⚠️
...rg/apache/kyuubi/server/api/v1/AdminResource.scala	0.00%	6 Missing ⚠️
...in/java/org/apache/kyuubi/client/AdminRestApi.java	0.00%	5 Missing ⚠️
...main/scala/org/apache/kyuubi/ctl/util/Render.scala	0.00%	4 Missing ⚠️
...in/scala/org/apache/kyuubi/config/KyuubiConf.scala	0.00%	3 Missing ⚠️
...a/org/apache/kyuubi/ctl/opt/AdminCommandLine.scala	0.00%	2 Missing ⚠️
...ache/kyuubi/ctl/cli/AdminControlCliArguments.scala	0.00%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #6702   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files         684     686    +2     
  Lines       42279   42324   +45     
  Branches     5765    5770    +5     
======================================
- Misses      42279   42324   +45     

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[pan3793]

listing configurations should be restricted to admin only. additionally, we may need to have another parameter to define the display mode for configuration values, e.g.

• ALL - display all configuration values as-is
• REDACTED - to avoid displaying password/secret values

PS: I remember there was a similar request to have a configuration display mode of configurations for retrieving batch info