[Instrumentation.AspNet] Add IConfiguration support

[CodeBlanch]

Fixes #1960

Changes

• Updates AspNet to retrieve OTEL_DOTNET_EXPERIMENTAL_ASPNET_DISABLE_URL_QUERY_REDACTION using IConfiguration

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• Unit tests added/updated
• Appropriate CHANGELOG.md files updated for non-trivial changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

Attention: Patch coverage is 92.68293% with 3 lines in your changes missing coverage. Please review.

Project coverage is 76.75%. Comparing base (71655ce) to head (2a978d2).
Report is 369 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1976      +/-   ##
==========================================
+ Coverage   73.91%   76.75%   +2.83%     
==========================================
  Files         267       15     -252     
  Lines        9615      357    -9258     
==========================================
- Hits         7107      274    -6833     
+ Misses       2508       83    -2425     

Flag	Coverage Δ
unittests-Instrumentation.AspNet	76.75% <92.68%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...mentation.AspNet/MeterProviderBuilderExtensions.cs	94.11% <100.00%> (-5.89%)	⬇️
...entation.AspNet/TracerProviderBuilderExtensions.cs	100.00% <100.00%> (ø)
...Implementation/AspNetInstrumentationEventSource.cs	82.35% <66.66%> (+5.42%)	⬆️
...tation.AspNet/AspNetTraceInstrumentationOptions.cs	86.66% <75.00%> (ø)

... and 267 files with indirect coverage changes