enhance: Enable dynamic update loaded collection's replica

[weiliu1031]

issue: #35821 After collection loaded, if we need to increase/decrease collection's replica, we need to release and load it again.

milvus offers 4 solution to update loaded collection's replica, this PR aims to dynamic change the replica number without release, and after replica number changed, milvus will execute load replica or release replica in async, and the replica loaded status can be checked by getReplicas API.

Notice that if set too much replicas than querynode can afford，the new replica won't be loaded successfully until enough querynode joins.

[mergify[bot]]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify[bot]]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[weiliu1031]

rerun ut

[wayblink]

rerun ut

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 75.37797% with 114 lines in your changes missing coverage. Please review.

Project coverage is 82.32%. Comparing base (c50fe71) to head (83ee29d). Report is 17 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/querycoordv2/job/job_update.go	48.14%	32 Missing and 10 partials :warning:
internal/querycoordv2/server.go	72.09%	8 Missing and 4 partials :warning:
internal/metastore/kv/querycoord/kv_catalog.go	31.25%	10 Missing and 1 partial :warning:
internal/querycoordv2/services.go	88.42%	8 Missing and 3 partials :warning:
internal/querycoordv2/meta/resource_manager.go	0.00%	9 Missing :warning:
internal/rootcoord/alter_database_task.go	73.33%	5 Missing and 3 partials :warning:
internal/querycoordv2/job/job_load.go	72.22%	4 Missing and 1 partial :warning:
internal/querycoordv2/task/executor.go	61.53%	4 Missing and 1 partial :warning:
internal/querycoordv2/meta/replica_manager.go	86.20%	2 Missing and 2 partials :warning:
internal/rootcoord/alter_collection_task.go	88.88%	2 Missing and 1 partial :warning:
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #35822      +/-   ##
==========================================
+ Coverage   73.38%   82.32%   +8.94%     
==========================================
  Files        1277     1279       +2     
  Lines      150759   151253     +494     
==========================================
+ Hits       110629   124520   +13891     
+ Misses      35137    21717   -13420     
- Partials     4993     5016      +23     

Files with missing lines	Coverage Δ
internal/distributed/querycoord/client/client.go	97.53% <100.00%> (+0.06%)	:arrow_up:
internal/distributed/querycoord/service.go	77.92% <100.00%> (+0.19%)	:arrow_up:
internal/metastore/catalog.go	100.00% <ø> (ø)
internal/querycoordv2/checkers/channel_checker.go	85.61% <100.00%> (+0.19%)	:arrow_up:
internal/querycoordv2/checkers/segment_checker.go	90.87% <100.00%> (+1.98%)	:arrow_up:
internal/querycoordv2/utils/meta.go	73.10% <100.00%> (+10.28%)	:arrow_up:
pkg/config/etcd_source.go	85.71% <100.00%> (ø)
tests/integration/minicluster_v2.go	71.11% <100.00%> (+0.27%)	:arrow_up:
internal/querycoordv2/meta/collection_manager.go	88.09% <86.66%> (-0.06%)	:arrow_down:
internal/util/mock/grpc_querycoord_client.go	94.73% <0.00%> (-2.57%)	:arrow_down:
... and 10 more

... and 263 files with indirect coverage changes

[weiliu1031]

rerun ut

[weiliu1031]

rerun ut

[mergify[bot]]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify[bot]]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify[bot]]

@weiliu1031 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify[bot]]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[weiliu1031]

/hold

[mergify[bot]]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify[bot]]

@weiliu1031 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[weiliu1031]

/run-cpu-e2e

[weiliu1031]

/unhold

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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