[Instrumentation.SqlClient] Support only stable HTTP semantic convention

[Kielek]

Fixes # N/A
Design discussion issue # N/A
Similiar pr for GrpcNetClient #5259

Changes

Drop support for old semantic convention in SqlClient instrumenation

Notes

MD-lint check is failing. Not related to these changes. Tracked under: #5271

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: 21 lines in your changes are missing coverage. Please review.

Comparison is base (6250307) 83.38% compared to head (b4bef13) 82.58%.
Report is 42 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5270      +/-   ##
==========================================
- Coverage   83.38%   82.58%   -0.80%     
==========================================
  Files         297      272      -25     
  Lines       12531    11957     -574     
==========================================
- Hits        10449     9875     -574     
  Misses       2082     2082              

Flag	Coverage Δ
unittests	?
unittests-Instrumentation-Experimental	24.66% <39.68%> (?)
unittests-Instrumentation-Stable	24.66% <39.68%> (?)
unittests-Solution-Experimental	82.93% <74.07%> (?)
unittests-Solution-Stable	82.59% <74.07%> (?)

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

Files	Coverage Δ
....Api/Context/Propagation/TraceContextPropagator.cs	88.88% <100.00%> (-0.59%)	⬇️
...etryProtocol/Implementation/ExperimentalOptions.cs	100.00% <ø> (ø)
...tation/OpenTelemetryProtocolExporterEventSource.cs	100.00% <100.00%> (ø)
...rotocol/Implementation/OtlpLogRecordTransformer.cs	93.45% <100.00%> (ø)
...tation.AspNetCore/Implementation/HttpInListener.cs	89.79% <100.00%> (+0.21%)	⬆️
...AspNetCore/Implementation/HttpInMetricsListener.cs	89.74% <100.00%> (+0.26%)	⬆️
....GrpcNetClient/GrpcClientInstrumentationOptions.cs	100.00% <ø> (+25.00%)	⬆️
...ent/Implementation/GrpcClientDiagnosticListener.cs	75.80% <100.00%> (-2.77%)	⬇️
...n.GrpcNetClient/TracerProviderBuilderExtensions.cs	100.00% <100.00%> (ø)
...plementation/HttpWebRequestActivitySource.netfx.cs	80.16% <100.00%> (-0.62%)	⬇️
... and 9 more

... and 45 files with indirect coverage changes