Promote DotNet detector out of experiment

[ericstj]

Also fixes a couple of potential NullRefs in the dotnet detector.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 89.6%. Comparing base (bf16661) to head (84c06b2).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ection.Detectors/dotnet/DotNetComponentDetector.cs	0.0%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1388     +/-   ##
=======================================
- Coverage   89.6%   89.6%   -0.1%     
=======================================
  Files        402     401      -1     
  Lines      31825   31820      -5     
  Branches    1964    1964             
=======================================
- Hits       28545   28540      -5     
  Misses      2863    2863             
  Partials     417     417             

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[github-actions]

👋 Hi! It looks like you modified some files in the Detectors folder.
You may need to bump the detector versions if any of the following scenarios apply:

• The detector detects more or fewer components than before
• The detector generates different parent/child graph relationships than before
• The detector generates different devDependencies values than before

If none of the above scenarios apply, feel free to ignore this comment 🙂

[JamieMagee]

FYI this breaks all integration tests:

Error Message:
   Initialization method Microsoft.ComponentDetection.VerificationTests.ComponentDetectionIntegrationTests.GatherResources threw exception. System.Collections.Generic.KeyNotFoundException: The given key 'DotNet' was not present in the dictionary..
  Stack Trace:
      at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at Microsoft.ComponentDetection.Contracts.BcdeModels.TypedComponentConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) in /home/runner/work/component-detection/component-detection/src/Microsoft.ComponentDetection.Contracts/BcdeModels/TypedComponentConverter.cs:line 48

[grvillic]

Good catch! It autocompleted since the checks are not required to be merged for some reason. I will update tests shortly.