deps(c#): Update dependency CommunityToolkit.Diagnostics to 8.4.0 #288

Job	Run time
runs-on (ubuntu-latest) / build (crawler)	57s
runs-on (macos-latest) / build (crawler)	54s
runs-on (macos-latest) / ReSharper	1m 59s
runs-on (ubuntu-latest) / build (imagePipeline)	40s
runs-on (macos-latest) / build (imagePipeline)	46s
runs-on (ubuntu-latest) / ReSharper	2m 2s
runs-on (ubuntu-latest) / build (shared)	40s
runs-on (macos-latest) / build (shared)	58s
runs-on (ubuntu-latest) / build (tbClient)	30s
runs-on (macos-latest) / build (tbClient)	43s
runs-on (windows-latest) / build (crawler)	2m 5s
runs-on (windows-latest) / ReSharper	4m 28s
runs-on (windows-latest) / build (imagePipeline)	1m 53s
runs-on (windows-latest) / build (shared)	1m 52s
runs-on (windows-latest) / build (tbClient)	1m 49s
	22m 16s

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