feat: merge grpc-js into grpc instrumentation #1657

[vmarchaud]

I splitted this PR into 3 commits following my process:

• i migrated the grpc-js patches into the grpc instrumentation
• then i refactored the grpc patches to match how grpc-js was architectured
• finally i updated the main instrumentation class to load both grpc and grpc-js patches.

Fixes #1657

[codecov]

Codecov Report

Merging #1806 (0b9a1b9) into main (1d682c2) will increase coverage by 0.32%.
The diff coverage is 91.28%.

@@            Coverage Diff             @@
##             main    #1806      +/-   ##
==========================================
+ Coverage   92.46%   92.78%   +0.32%     
==========================================
  Files         161      182      +21     
  Lines        5229     6363    +1134     
  Branches     1110     1340     +230     
==========================================
+ Hits         4835     5904    +1069     
- Misses        394      459      +65     

Impacted Files	Coverage Δ
...es/opentelemetry-instrumentation-grpc/src/utils.ts	93.93% <ø> (ø)
...emetry-instrumentation-grpc/src/instrumentation.ts	76.66% <76.66%> (ø)
...metry-instrumentation-grpc/src/grpc/clientUtils.ts	88.23% <88.23%> (ø)
...elemetry-instrumentation-grpc/src/grpc-js/index.ts	90.81% <90.81%> (ø)
...ry-instrumentation-grpc/src/grpc-js/serverUtils.ts	91.54% <91.54%> (ø)
...ry-instrumentation-grpc/src/grpc-js/clientUtils.ts	92.50% <92.50%> (ø)
...entelemetry-instrumentation-grpc/src/grpc/index.ts	93.04% <93.04%> (ø)
...metry-instrumentation-grpc/src/grpc/serverUtils.ts	100.00% <100.00%> (ø)
... and 20 more

[vmarchaud]

@obecny @dyladan I think i have another way of architecturing this that would avoid exposing protected in the public api, i'm converting it back to draft while i'm working on this

[vmarchaud]

I've rewrote the GrpcInstrumentation class to be some sort of proxy for both GrpcJsInstrumentation and GrpcNativeInstrumentation, it exposes the same API than instrumentation so it should be the same from end users.
PTAL @obecny @dyladan also @markwolff since i believe you wrote initial plugins

[obecny]

pls remove locks

[vmarchaud]

cc @obecny i've rebased + removed package locks