Bump dotnet sdk from 8.0.402 to 8.0.403 #772

Job	Run time
lint-markdown	10m 46s
build (macos-latest)	32s
build (ubuntu-latest)	35s
build (windows-latest)	1m 59s
integration (macos-latest, default)	45s
integration (macos-latest, bash)	54s
integration (macos-latest, pwsh)	54s
integration (ubuntu-latest, default)	45s
integration (ubuntu-latest, bash)	51s
integration (ubuntu-latest, pwsh)	57s
integration (windows-latest, default)	2m 30s
integration (windows-latest, pwsh)	2m 18s
integration (windows-latest, C:\Program Files\Git\bin\bash.exe)	2m 54s
release	0s
	26m 40s

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