.NET 8

[rkm]

Proposed Changes

Upgrade to .NET 8 and C# 12.

Types of changes

What types of changes does your code introduce? Tick all that apply.

• Bugfix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that would cause existing functionality to not work as expected)
• Documentation-Only Update (if none of the other choices apply)
  • In this case, ensure that the message of the head commit from the source branch is prefixed with [skip ci]

Checklist

By opening this PR, I confirm that I have:

• Reviewed the contributing guidelines for this repository
• Ensured that the PR branch is in sync with the target branch (i.e. it is automatically merge-able)
• Updated any relevant API documentation
• Created or updated any tests if relevant
• Created a news file
  • NOTE: This must include any changes to any of the following files: default.yaml, any of the RabbitMQ server configurations, GlobalOptions.cs
• Listed myself in the CONTRIBUTORS file 🚀
• Requested a review by one of the repository maintainers

Issues

• Closes upgrade to .NET 8 #1811

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 59.79%. Comparing base (78c7af2) to head (2183667).

Files	Patch %	Lines
...rMapper/Messaging/IdentifierMapperQueueConsumer.cs	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1823      +/-   ##
==========================================
- Coverage   59.82%   59.79%   -0.03%     
==========================================
  Files         177      177              
  Lines        6332     6328       -4     
  Branches      870      870              
==========================================
- Hits         3788     3784       -4     
+ Misses       2304     2303       -1     
- Partials      240      241       +1     

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