test: fix test update cluster view

[ZuLiangWang]

Which issue does this PR close?

Closes #

Rationale for this change

Fix broken unit test.

What changes are included in this PR?

• Fix testUpdateClusterView

Are there any user-facing changes?

None.

How does this change test

Pass all unit tests and integration test.

[codecov]

Codecov Report

Merging #204 (64bdb53) into main (7f1354e) will increase coverage by 20.68%.
The diff coverage is 55.81%.

@@             Coverage Diff             @@
##             main     #204       +/-   ##
===========================================
+ Coverage   39.66%   60.34%   +20.68%     
===========================================
  Files          34       41        +7     
  Lines        4213     4918      +705     
===========================================
+ Hits         1671     2968     +1297     
+ Misses       2317     1570      -747     
- Partials      225      380      +155     

Impacted Files	Coverage Δ
pkg/coderr/code.go	0.00% <ø> (ø)
server/cluster/metadata/types.go	0.00% <0.00%> (ø)
server/coordinator/procedure/util.go	0.00% <ø> (ø)
server/storage/meta.go	0.00% <ø> (ø)
server/storage/storage_impl.go	57.21% <0.00%> (-5.10%)	⬇️
server/member/watch_leader.go	40.62% <20.00%> (-2.71%)	⬇️
server/cluster/manager.go	39.02% <23.07%> (ø)
server/member/member.go	47.39% <45.00%> (-1.32%)	⬇️
server/coordinator/scheduler/scheduler_manager.go	53.96% <47.36%> (ø)
server/coordinator/procedure/manager_impl.go	73.68% <55.55%> (+73.68%)	⬆️
... and 13 more

... and 3 files with indirect coverage changes

[chunshao90]

LGTM