Fix mithril-aggregator genesis bootstrap flakiness in e2e tests #8273

Job	Run time
build-test-wasm	2m 10s
cargo-doc	39s
build-ubuntu-X64	5m 27s
build (macos-14)	1m 40s
build (macos-14-large)	1m 48s
build-open-api-ui	5s
check	1m 22s
build (windows-latest)	5m 35s
test (ubuntu-24.04)	10m 7s
test (macos-14)	1m 17s
test (macos-14-large)	1m 29s
build-docusaurus	1m 33s
test (windows-latest)	5m 5s
build-test-explorer	1m 46s
publish-wasm-test (mithril-client-wasm)	1m 32s
publish-docs	0s
e2e (std, pythagoras, 10.1.3, 0, #1)	1m 31s
e2e (std, pythagoras, 10.1.3, 0, #2)	1m 35s
e2e (std, pythagoras, 10.1.4, 0, #1)	1m 49s
e2e (std, pythagoras, 10.1.4, 0, #2)	1m 48s
e2e (p2p, pythagoras, 10.1.4, 0, #1, --use-p2p-network)	1m 48s
e2e (std, pythagoras, 10.1.4, 0, #1, --mithril-era-regenesis-on-switch)	1m 27s
send-tests-results	14s
publish-crate-test (mithril-stm)	8s
unstable-release	0s
publish-crate-test (mithril-build-script)	8s
publish-crate-test (mithril-common)	11s
docker-mithril (mithril-aggregator)	21s
docker-mithril (mithril-client-cli)	22s
docker-mithril (mithril-signer)	28s
docker-mithril (mithril-relay)	32s
deploy-testing (testing-preview)	17s
deploy-testing (testing-sanchonet)	14s
	54m 28s

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