test(rln-relay): aggressive polling for networks with shorter blocktime #4734

Job	Run time
changes	8s
build-ubuntu-latest	19m 3s
build-macos-13	15m 31s
test-ubuntu-latest	26m 45s
test-macos-13	8m 42s
build-docker-image / docker-build-ubuntu-latest	4m 19s
js-waku-node / node	27m 39s
js-waku-node-optional / node	1m 16s
	1h 43m 23s

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