Move Context methods getLocal/removeLocal/putLocal to ContextInternal… #2256

Job	Run time
CI (ubuntu-latest, 11, -PNativeIoUring) / Run tests	12m 14s
CI (ubuntu-latest, 11, -PNativeEpoll+DomainSockets) / Run tests	10m 50s
CI (ubuntu-latest, 11, -PNativeEpoll) / Run tests	11m 8s
CI (ubuntu-latest, 11) / Run tests	11m 16s
CI (ubuntu-latest, 21) / Run tests	11m 6s
CI (windows-latest, 11, true) / Run tests	14m 38s
Deploy	0s
	1h 11m 12s

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