feat: [2.5] root privileges can be customized

[SimFG]

• issue: [Enhancement]: Support custom root privileges #39184
• pr: feat: root privileges can be customized #39191

[mergify]

@SimFG cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[SimFG]

rerun cpp-unit-test

[mergify]

@SimFG E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@SimFG go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@SimFG cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, SimFG

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[SimFG]

/run-cpu-e2e

[SimFG]

rerun go-sdk

[SimFG]

rerun cpp-unit-test

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 14 lines in your changes missing coverage. Please review.

Project coverage is 81.04%. Comparing base (1602390) to head (82f0423).
Report is 3 commits behind head on 2.5.

Files with missing lines	Patch %	Lines
internal/proxy/meta_cache_testonly.go	50.00%	8 Missing and 2 partials ⚠️
internal/rootcoord/root_coord.go	20.00%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##              2.5   #39324   +/-   ##
=======================================
  Coverage   81.04%   81.04%           
=======================================
  Files        1403     1404    +1     
  Lines      197406   197436   +30     
=======================================
+ Hits       159986   160011   +25     
- Misses      31797    31801    +4     
- Partials     5623     5624    +1     

Components	Coverage Δ
Client	78.26% <ø> (ø)
Core	69.50% <ø> (ø)
Go	83.02% <60.00%> (+<0.01%)	⬆️

Files with missing lines	Coverage Δ
internal/proxy/privilege_interceptor.go	82.63% <100.00%> (-2.11%)	⬇️
pkg/util/paramtable/component_param.go	98.40% <100.00%> (+<0.01%)	⬆️
internal/rootcoord/root_coord.go	89.90% <20.00%> (-0.15%)	⬇️
internal/proxy/meta_cache_testonly.go	50.00% <50.00%> (ø)

... and 22 files with indirect coverage changes