Fix: route with more invokers

[Lvnszn]

What this PR does:
multiple invoker may include different methods, find correct invoker.

Which issue(s) this PR fixes:
Fixes #1956

You should pay attention to items below to ensure your pr passes our ci test
We do not merge pr with ci tests failed

• All ut passed (run 'go test ./...' in project root)
• After go-fmt ed , run 'go fmt project' using goland.
• Golangci-lint passed, run 'sudo golangci-lint run' in project root.
• After import formatted, (using imports-formatter to run 'imports-formatter .' in project root, to format your import blocks, mentioned in CONTRIBUTING.md above)
• Your new-created file needs to have apache license at the top, like other existed file does.
• All integration test passed. You can run integration test locally (with docker env). Clone our dubbo-go-samples project and replace the go.mod to your dubbo-go, and run 'sudo sh start_integration_test.sh' at root of samples project root. (M1 Slice is not Support)

[AlexStocks]

pls fix the ci failure

[codecov-commenter]

Codecov Report

Merging #2000 (d1c5340) into 3.0 (013f0b2) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##              3.0    #2000      +/-   ##
==========================================
- Coverage   44.38%   44.37%   -0.02%     
==========================================
  Files         283      283              
  Lines       17067    17069       +2     
==========================================
- Hits         7575     7574       -1     
- Misses       8690     8693       +3     
  Partials      802      802              

Impacted Files	Coverage Δ
cluster/cluster/zoneaware/cluster_interceptor.go	40.00% <ø> (ø)
cluster/router/tag/router.go	59.64% <ø> (ø)
common/url.go	59.04% <0.00%> (-0.27%)	⬇️
cluster/cluster/available/cluster_invoker.go	66.66% <0.00%> (-6.67%)	⬇️

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