Allow all RPC messages on disconnect #16980

Job	Run time
Check for 'skip-ci' label	1s
check-code	7m 45s
check-msrv	4m 16s
target-branch-check	1s
basic-simulator-ubuntu	20m 12s
cli-check	16m 31s
cargo-udeps	6m 14s
beacon-chain-tests	19m 12s
compile-with-beta-compiler	13m 23s
debug-tests-ubuntu	10m 11s
ef-tests-ubuntu	8m 48s
execution-engine-integration-ubuntu	13m 40s
fallback-simulator-ubuntu	17m 34s
network-tests	14m 53s
op-pool-tests	18m 42s
release-tests-ubuntu	24m 22s
release-tests-windows	51m 6s
state-transition-vectors-ubuntu	8m 38s
slasher-tests	2m 56s
test-suite-success	4s
	4h 18m 29s

Provide feedback