Add DisallowShadowing rule #1813

Job	Run time
buildAndTest (ubuntu-latest)	5m 14s
buildAndTest (windows-latest)	7m 27s
buildAndTest (macOS-latest)	7m 8s
packReleaseBinaries	5m 5s
testReleaseBinariesWithDotNet10	24s
testReleaseBinariesInDotNet8Container	22s
publishReleaseBinaries	3m 21s
deployReleaseDocs	1m 15s
	30m 16s

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