Add check for metrics name to prevent add duplicated _total suffix

[ShadowySpirits]

fix #5304

[linux-foundation-easycla]

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• ✅ login: ShadowySpirits / name: SSpirits (adbf815)

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.40 🎉

Comparison is base (3d5424a) 90.97% compared to head (2640d81) 91.37%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5308      +/-   ##
============================================
+ Coverage     90.97%   91.37%   +0.40%     
- Complexity     4907     5204     +297     
============================================
  Files           552      556       +4     
  Lines         14489    15533    +1044     
  Branches       1372     1493     +121     
============================================
+ Hits          13182    14194    +1012     
- Misses          907      934      +27     
- Partials        400      405       +5     

Impacted Files	Coverage Δ
.../opentelemetry/exporter/prometheus/Serializer.java	86.68% <100.00%> (ø)

... and 51 files with indirect coverage changes

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[github-actions]

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[github-actions]

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