fix(sdk-web): parse url with relative url string

[legendecas]

Which problem is this PR solving?

Removes redundant implementation of parseUrl in web instrument packages.

Also fixes global environment checks for web-like environments like Deno. However, I still cannot find a proper way to run our test suites with Deno :(.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• parseUrl with relative url

Checklist:

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

[codecov]

Codecov Report

Merging #2972 (fce2b92) into main (69cced2) will decrease coverage by 1.22%.
The diff coverage is 100.00%.

❗ Current head fce2b92 differs from pull request most recent head a9846e6. Consider uploading reports for the commit a9846e6 to get more accurate results

@@            Coverage Diff             @@
##             main    #2972      +/-   ##
==========================================
- Coverage   92.55%   91.33%   -1.23%     
==========================================
  Files         183      176       -7     
  Lines        6034     5552     -482     
  Branches     1284     1196      -88     
==========================================
- Hits         5585     5071     -514     
- Misses        449      481      +32     

Impacted Files	Coverage Δ
packages/opentelemetry-sdk-trace-web/src/utils.ts	65.62% <100.00%> (-29.38%)	⬇️
...lemetry-resources/src/detectors/BrowserDetector.ts	53.33% <0.00%> (-46.67%)	⬇️
...lemetry-resources/src/detectors/ProcessDetector.ts	95.45% <0.00%> (-4.55%)	⬇️
...s/opentelemetry-instrumentation-fetch/src/fetch.ts
...emetry-instrumentation-xml-http-request/src/xhr.ts
...ation-xml-http-request/src/enums/AttributeNames.ts
...ry-context-zone-peer-dep/src/ZoneContextManager.ts
...mentation-xml-http-request/src/enums/EventNames.ts
...es/opentelemetry-context-zone-peer-dep/src/util.ts
... and 1 more

[pichlermarc]

Looks great, thanks for working this! 🙂