Releasing 1.2.4 #313

Job	Run time
Builds Playground	1m 9s
Check TODOs	8s
Test CSharpier.MSBuild (windows-latest)	2m 3s
Test CSharpier.MSBuild (ubuntu-latest)	1m 30s
Check Formatting	12s
No Warnings	58s
Run Tests	1m 12s
	7m 12s

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