Track number of connections per address in peering strategy #4201

Job	Run time
check-features	2m 58s
check-no-std	1m 28s
check-rustdoc-links	3m 14s
fuzzing-binaries-compile	4m 42s
test-32bits	6m 3s
test-64bits	6m 2s
wasm-node-check	1m 58s
cargo-deny (bans licenses sources)	25s
cargo-spellcheck	20s
clippy	37s
fmt	30s
wasm-node-versions-match	30s
all-ci	1s
	28m 48s

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