feat(instrumentation-http): monitor error events with events.errorMonitor

[legendecas]

Which problem is this PR solving?

Related: #225

As support for Node.js versions lower than v12 are dropped, error events can be monitored without side-effects with events.errorMonitor.

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• Verified Error event listeners counts.

Checklist:

• Followed the style guidelines of this project
• Unit tests have been added
• Documentation has been updated

[codecov]

Codecov Report

Merging #3402 (92c38fa) into main (76073ee) will decrease coverage by 0.08%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3402      +/-   ##
==========================================
- Coverage   93.33%   93.24%   -0.09%     
==========================================
  Files         246      247       +1     
  Lines        7326     7347      +21     
  Branches     1507     1512       +5     
==========================================
+ Hits         6838     6851      +13     
- Misses        488      496       +8     

Impacted Files	Coverage Δ
...ges/opentelemetry-instrumentation-http/src/http.ts	94.78% <100.00%> (+0.01%)	⬆️
...-trace-base/src/platform/node/RandomIdGenerator.ts	87.50% <0.00%> (-6.25%)	⬇️
.../src/platform/browser/export/BatchSpanProcessor.ts	45.00% <0.00%> (ø)
...kages/opentelemetry-sdk-trace-base/karma.worker.js	100.00% <0.00%> (+100.00%)	⬆️