Refactor PeerManager to introduce Connectivity Module #19919

Job	Run time
check-code	13m 15s
Check for 'skip-ci' label	1s
check-msrv	5m 19s
lockbud	14m 36s
target-branch-check	1s
basic-simulator-ubuntu	15m 9s
cargo-sort	25s
cargo-udeps	7m 35s
beacon-chain-tests	25m 11s
cli-check	6m 56s
compile-with-beta-compiler	15m 0s
debug-tests-ubuntu	10m 15s
ef-tests-ubuntu	8m 49s
execution-engine-integration-ubuntu	8m 26s
fallback-simulator-ubuntu	11m 36s
network-tests	21m 11s
op-pool-tests	17m 55s
release-tests-ubuntu	22m 45s
release-tests-windows	28m 34s
slasher-tests	1m 46s
state-transition-vectors-ubuntu	2m 27s
test-suite-success	3s
	3h 57m 15s

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