feat: Add DHT and RequestResponse notifications #1265

Job	Run time
changes	5s
run-docs	3m 35s
run-deny	1m 23s
run-tests (ubuntu-latest, stable, all)	3h 33m 15s
run-checks (ubuntu-latest, stable)	52s
run-tests (ubuntu-latest, stable, none)	6m 32s
run-checks (ubuntu-latest, nightly)	2m 44s
run-tests-windows (stable, all)	38m 6s
run-tests (ubuntu-latest, nightly, all)	10m 44s
run-checks (macos-latest, stable)	1m 39s
run-tests-windows (stable, none)	9m 42s
run-tests (ubuntu-latest, nightly, none)	7m 5s
run-checks (macos-latest, nightly)	5m 31s
run-tests-windows (nightly, all)	44m 1s
run-tests (macos-latest, stable, all)	3h 37m 30s
run-checks (windows-latest, stable)	4m 38s
run-tests-windows (nightly, none)	13m 31s
run-tests (macos-latest, stable, none)	13m 51s
run-checks (windows-latest, nightly)	5m 34s
run-tests (macos-latest, nightly, all)	3h 39m 41s
run-tests (macos-latest, nightly, none)	12m 42s
	13h 52m 41s

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