feat(plugin-http): sync. specs for statuscode

[OlivierAlbertini]

Which problem is this PR solving?

• closes [plugin-http] update parseResponseStatus from new specs #642

Short description of the changes

• Synchronise HTTP status code with CanonicalCode according to specs.

I try to use the benchmark system we have, see my sample code here : https://gist.github.com/OlivierAlbertini/9505254b713b9db5f60168ed3fa4e437

But the result is a bit random (on my macbook pro 2016). I would like to know which one is faster. Any insight ?
If we want to share this code with the web, I think we should discuss it and resolve it in a separate PR.

[codecov-io]

Codecov Report

Merging #719 into master will decrease coverage by 1.74%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #719      +/-   ##
==========================================
- Coverage   92.75%   91.01%   -1.75%     
==========================================
  Files         228      225       -3     
  Lines       10451    10401      -50     
  Branches      941      953      +12     
==========================================
- Hits         9694     9466     -228     
- Misses        757      935     +178

Impacted Files	Coverage Δ
...lemetry-plugin-http/test/functionals/utils.test.ts	99.37% <100%> (+0.02%)	⬆️
packages/opentelemetry-plugin-http/src/utils.ts	97.26% <100%> (-0.66%)	⬇️
...y-plugin-http/test/functionals/http-enable.test.ts	96.21% <100%> (ø)	⬆️
packages/opentelemetry-tracing/src/version.ts	0% <0%> (ø)	⬆️
...s/opentelemetry-scope-zone-peer-dep/src/version.ts	0% <0%> (ø)	⬆️
...kages/opentelemetry-plugin-dns/test/utils/utils.ts	33.33% <0%> (ø)	⬆️
...y-exporter-collector/test/common/transform.test.ts	0% <0%> (ø)	⬆️
packages/opentelemetry-core/test/utils/url.test.ts	50% <0%> (-50%)	⬇️
...pentelemetry-core/test/internal/validators.test.ts	50% <0%> (-50%)	⬇️
...elemetry-core/test/trace/spancontext-utils.test.ts	55.55% <0%> (-44.45%)	⬇️
... and 129 more

[mayurkale22]

lgtm

[obecny]

lgtm