enhance: Refresh proxy cache after restore rbac meta

[weiliu1031]

issue: #35443
pr: #35635

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 3 lines in your changes missing coverage. Please review.

Project coverage is 80.21%. Comparing base (e2542a1) to head (5c7db5f).
Report is 5 commits behind head on 2.4.

Files	Patch %	Lines
internal/rootcoord/root_coord.go	85.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #35636      +/-   ##
==========================================
+ Coverage   71.88%   80.21%   +8.33%     
==========================================
  Files        1056     1056              
  Lines      138493   138589      +96     
==========================================
+ Hits        99560   111176   +11616     
+ Misses      34697    23172   -11525     
- Partials     4236     4241       +5     

Files	Coverage Δ
internal/metastore/kv/rootcoord/kv_catalog.go	87.50% <100.00%> (-0.22%)	⬇️
internal/rootcoord/root_coord.go	91.67% <85.00%> (-0.09%)	⬇️

... and 258 files with indirect coverage changes

[SimFG]

/lgtm

[congqixia]

/approve

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: congqixia, weiliu1031

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