Allow all RPC messages on disconnect #16987

Job	Run time
Check for 'skip-ci' label	1s
check-code	7m 57s
check-msrv	4m 11s
target-branch-check	1s
beacon-chain-tests	17m 21s
op-pool-tests	12m 9s
network-tests	8m 49s
debug-tests-ubuntu	5m 52s
release-tests-ubuntu	15m 53s
release-tests-windows	26m 25s
basic-simulator-ubuntu	12m 56s
cargo-udeps	6m 23s
cli-check	8m 17s
compile-with-beta-compiler	13m 24s
ef-tests-ubuntu	12m 9s
execution-engine-integration-ubuntu	10m 24s
fallback-simulator-ubuntu	10m 41s
slasher-tests	1m 0s
state-transition-vectors-ubuntu	2m 12s
test-suite-success	5s
	2h 56m 10s

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