feat: introduce internal exporter http client

[legendecas]

Which problem is this PR solving?

Introduce an internal http client that chooses the available http implementations in XMLHttpRequest, fetch, sendBeacon, and node:http based on feature detection. The http client is designed to be used with exporters only. The exposed HTTP Client is a feature-limited one. Exporters don't care about the response details of the request.

This enables exporters to support environments like Deno, ServiceWorker, that don't support XMLHttpRequest or sendBeacon. And reduces the duplications between exporters.

Type of change

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

How Has This Been Tested?

• Browser test - XHRHttpRequest
• Browser test - sendBeacon
• Fetch
• node:http
• Retry Export
• Zipkin Exporter
• OTLP Exporter

Checklist:

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

[codecov]

Codecov Report

Merging #3577 (1df055e) into main (d1f9594) will decrease coverage by 1.06%.
The diff coverage is 83.61%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3577      +/-   ##
==========================================
- Coverage   93.88%   92.83%   -1.06%     
==========================================
  Files         255      253       -2     
  Lines        7757     7413     -344     
  Branches     1612     1554      -58     
==========================================
- Hits         7283     6882     -401     
- Misses        474      531      +57     

Impacted Files	Coverage Δ
...ntelemetry-core/src/internal/http-clients/fetch.ts	17.39% <17.39%> (ø)
...try-core/src/platform/node/internal/send-beacon.ts	66.66% <66.66%> (ø)
...entelemetry-core/src/platform/node/internal/xhr.ts	66.66% <66.66%> (ø)
...metry-core/src/platform/node/internal/node-http.ts	87.50% <87.50%> (ø)
...ckages/opentelemetry-exporter-zipkin/src/zipkin.ts	91.66% <92.85%> (-8.34%)	⬇️
...ges/opentelemetry-core/src/internal/http-export.ts	98.03% <98.03%> (ø)
...ges/opentelemetry-core/src/internal/http-client.ts	100.00% <100.00%> (ø)
packages/opentelemetry-core/src/internal/index.ts	100.00% <100.00%> (ø)
packages/opentelemetry-sdk-trace-web/src/utils.ts	65.83% <0.00%> (-29.20%)	⬇️
... and 9 more

[github-actions]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[github-actions]

This PR was closed because it has been stale for 14 days with no activity.