[Exporter.Geneva] Add net8.0 target for GenevaExporter

[utpilla]

Changes

• Add net8.0 target for GenevaExporter
• Update OTel SDK version to 1.7.0-rc.1
• Update public API files (this was missed in previous stable releases)
• Update package version of Benchmark.NET

• Appropriate CHANGELOG.md updated for non-trivial changes

[codecov]

Codecov Report

Merging #1463 (5dd931d) into main (71655ce) will increase coverage by 0.43%.
Report is 69 commits behind head on main.
The diff coverage is 70.26%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1463      +/-   ##
==========================================
+ Coverage   73.91%   74.35%   +0.43%     
==========================================
  Files         267      262       -5     
  Lines        9615     9806     +191     
==========================================
+ Hits         7107     7291     +184     
- Misses       2508     2515       +7     

Flag	Coverage Δ
unittests-Exporter.Geneva	60.25% <32.14%> (?)
unittests-Exporter.OneCollector	89.72% <100.00%> (?)
unittests-Extensions	82.75% <100.00%> (?)
unittests-Instrumentation.AspNet	72.56% <94.44%> (?)
unittests-Instrumentation.EventCounters	75.92% <ø> (?)
unittests-Instrumentation.Owin	85.71% <100.00%> (?)
unittests-Instrumentation.Process	100.00% <ø> (?)
unittests-Instrumentation.Runtime	100.00% <ø> (?)
unittests-Instrumentation.StackExchangeRedis	71.37% <6.45%> (?)
unittests-Instrumentation.Wcf	78.33% <81.59%> (?)
unittests-PersistentStorage	58.80% <ø> (?)
unittests-ResourceDetectors.Azure	80.90% <60.00%> (?)
unittests-ResourceDetectors.ProcessRuntime	76.08% <76.08%> (?)
unittests-Solution	81.10% <81.15%> (?)

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

Files	Coverage Δ
...xporter.Geneva/Internal/ConnectionStringBuilder.cs	92.94% <100.00%> (ø)
...r.Geneva/Metrics/GenevaMetricExporterExtensions.cs	93.33% <ø> (ø)
...orter.Geneva/MsgPackExporter/MsgPackLogExporter.cs	95.10% <100.00%> (+1.76%)	⬆️
...ter.Geneva/MsgPackExporter/MsgPackTraceExporter.cs	94.52% <100.00%> (+2.10%)	⬆️
...ry.Exporter.InfluxDB/InfluxDBExporterExtensions.cs	100.00% <100.00%> (ø)
....Exporter.OneCollector/Internal/CallbackManager.cs	96.00% <100.00%> (+0.16%)	⬆️
...ector/Internal/Transports/HttpJsonPostTransport.cs	95.41% <ø> (ø)
...er.OneCollector/Internal/Transports/IHttpClient.cs	100.00% <ø> (ø)
...ctor/Logs/OneCollectorLogExportProcessorBuilder.cs	67.74% <ø> (ø)
...ions.Enrichment/Internal/TraceEnrichmentActions.cs	100.00% <100.00%> (ø)
... and 68 more

... and 35 files with indirect coverage changes

[utpilla]

With 1.7.0-rc.1 version of the SDK, this package now pulls in 8.0.0 version of Microsoft.Extensions.Logging.Configuration instead of 3.1.0 version that used to come with the previous dependency.

Microsoft.Extensions.Logging.Configuration has added a dedicated net462 target in 8.0.0 which does not have the RuntimeInformation library included. That's why we need an explicit package dependency for net462 targets now. With 3.1.0 version, there was no dedicated net462 target, and the package ended up using netstandard2.0 bits which includes the RuntimeInformation package.

Follow this discussion for more details: open-telemetry/opentelemetry-dotnet#5020 (comment)

[CodeBlanch]

LGTM

[reyang]

nit: this line is not needed I guess?