fix: Update Azure Functions Detector Collected Attributes

[JacksonWeber]

Short description of the changes

• This PR updates the fields collected by the Azure Functions resource detector to be in line with Azure Functions' expectations. Fixes improper population of fields like faas.name and properly populates service.name instead for example. We also now collect the process PID and cloud resource ID.
• These changes come with updated tests & README.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.40%. Comparing base (dfb2dff) to head (b99da1c).
Report is 147 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2233      +/-   ##
==========================================
- Coverage   90.97%   90.40%   -0.58%     
==========================================
  Files         146      149       +3     
  Lines        7492     7514      +22     
  Branches     1502     1573      +71     
==========================================
- Hits         6816     6793      -23     
- Misses        676      721      +45     

Files	Coverage Δ
...tor-azure/src/detectors/AzureAppServiceDetector.ts	100.00% <100.00%> (+3.33%)	⬆️
...ctor-azure/src/detectors/AzureFunctionsDetector.ts	100.00% <100.00%> (ø)
...opentelemetry-resource-detector-azure/src/utils.ts	100.00% <100.00%> (ø)

... and 49 files with indirect coverage changes

[hectorhdzg]

LGTM