feat: Add DHT and RequestResponse notifications #1313

Job	Run time
changes	6s
run-tests-windows (stable, all)	19m 27s
run-tests-windows (stable, none)	13m 36s
run-tests-windows (nightly, all)	19m 35s
run-docs	4m 5s
run-deny	1m 19s
run-checks (ubuntu-latest, stable)	53s
run-tests-windows (nightly, none)	15m 47s
run-checks (ubuntu-latest, nightly)	1m 17s
run-tests (ubuntu-latest, stable, all)	7m 36s
run-checks (macos-latest, stable)	2m 43s
run-tests (ubuntu-latest, stable, none)	4m 53s
run-checks (macos-latest, nightly)	3m 17s
run-tests (ubuntu-latest, nightly, all)	9m 55s
run-checks (windows-latest, stable)	4m 1s
run-tests (ubuntu-latest, nightly, none)	5m 24s
run-checks (windows-latest, nightly)	5m 22s
run-tests (macos-latest, stable, all)	10m 57s
run-tests (macos-latest, stable, none)	9m 14s
run-tests (macos-latest, nightly, all)	13m 38s
run-tests (macos-latest, nightly, none)	11m 16s
	2h 44m 21s

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