chore(sdk-node): fix lint warnings

[alisabzevari]

related to #1093

Which problem is this PR solving?

• This PR fixes lint warnings in sdk-node package.

Short description of the changes

• Fix lint warnings

[codecov]

Codecov Report

Merging #2453 (e6929b0) into main (ec90f10) will increase coverage by 0.48%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2453      +/-   ##
==========================================
+ Coverage   92.22%   92.71%   +0.48%     
==========================================
  Files         120      137      +17     
  Lines        4013     4996     +983     
  Branches      850     1057     +207     
==========================================
+ Hits         3701     4632     +931     
- Misses        312      364      +52     

Impacted Files	Coverage Δ
packages/opentelemetry-sdk-node/src/sdk.ts	78.12% <100.00%> (ø)
...ry-context-zone-peer-dep/src/ZoneContextManager.ts	85.18% <0.00%> (ø)
...-instrumentation-fetch/src/enums/AttributeNames.ts	100.00% <0.00%> (ø)
...ation-xml-http-request/src/enums/AttributeNames.ts	100.00% <0.00%> (ø)
...s/opentelemetry-instrumentation-fetch/src/fetch.ts	96.96% <0.00%> (ø)
...telemetry-sdk-trace-web/src/StackContextManager.ts	94.28% <0.00%> (ø)
...mentation-xml-http-request/src/enums/EventNames.ts	100.00% <0.00%> (ø)
packages/opentelemetry-sdk-trace-web/src/types.ts	100.00% <0.00%> (ø)
...emetry-instrumentation-xml-http-request/src/xhr.ts	97.58% <0.00%> (ø)
...entelemetry-sdk-trace-web/src/WebTracerProvider.ts	100.00% <0.00%> (ø)
... and 8 more

[obecny]

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