Fix: fix the exception when tcp timeout is less than 1s for 3.0 #1362

[ChangedenCZD]

What this PR does:

Which issue(s) this PR fixes:

Fixes #1362

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

None

[codecov-commenter]

Codecov Report

Merging #1380 (ebc6a05) into 3.0 (f192c1e) will increase coverage by 0.21%.
The diff coverage is 45.00%.

❗ Current head ebc6a05 differs from pull request most recent head 6c3e38b. Consider uploading reports for the commit 6c3e38b to get more accurate results

@@            Coverage Diff             @@
##              3.0    #1380      +/-   ##
==========================================
+ Coverage   54.75%   54.96%   +0.21%     
==========================================
  Files         272      272              
  Lines       14753    14753              
==========================================
+ Hits         8078     8109      +31     
+ Misses       5799     5768      -31     
  Partials      876      876              

Impacted Files	Coverage Δ
common/url.go	61.03% <0.00%> (-0.58%)	⬇️
remoting/zookeeper/client.go	0.00% <0.00%> (ø)
remoting/getty/config.go	20.21% <33.33%> (+1.82%)	⬆️
config/registry_config.go	86.66% <100.00%> (ø)
config/remote_config.go	72.41% <100.00%> (+4.67%)	⬆️
metadata/report/etcd/report.go	53.62% <100.00%> (ø)
registry/etcdv3/registry.go	73.84% <100.00%> (+4.28%)	⬆️
registry/nacos/service_discovery.go	70.62% <100.00%> (+0.16%)	⬆️
remoting/nacos/builder.go	80.70% <100.00%> (+2.73%)	⬆️
filter/metrics/filter.go	86.36% <0.00%> (-13.64%)	⬇️
... and 6 more

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[Mulavar]

与 1.5 分支同样问题