Feat: implement era switch in e2e tests #7154

Job	Run time
build-open-api-ui	7s
build (macos-12)	3m 23s
build-docusaurus	1m 50s
build-test-wasm	1m 14s
build (macos-14)	1m 17s
build (windows-latest)	4m 15s
build-ubuntu-X64	4m 4s
cargo-doc	41s
check	1m 20s
test (ubuntu-22.04)	6m 53s
test (macos-12)	1m 21s
test (macos-14)	1m 7s
test (windows-latest)	3m 53s
build-test-explorer	1m 21s
publish-wasm-test (mithril-client-wasm)	59s
publish-docs	0s
e2e (std, thales, 9.0.0, 0, #1)	1m 27s
e2e (std, thales, 9.1.0, 0, #1)	1m 29s
e2e (std, thales, 9.1.1, 0, #1)	1m 25s
e2e (std, thales, 9.2.0, 0, #1)	1m 18s
e2e (std, thales, 9.2.1, 0, #1)	1m 54s
e2e (std, pythagoras, 9.0.0, 0, #1)	1m 20s
e2e (std, pythagoras, 9.1.0, 0, #1)	1m 19s
e2e (std, pythagoras, 9.1.1, 0, #1)	1m 30s
e2e (std, pythagoras, 9.2.0, 0, #1)	1m 37s
e2e (std, pythagoras, 9.2.1, 0, #1)	1m 47s
e2e (p2p, thales, 9.1.1, 0, #1, --use-p2p-network)	1m 35s
e2e (p2p, thales, pythagoras, 9.1.1, 0, #1)	1m 40s
e2e (p2p, thales, pythagoras, 9.1.1, 0, #1, --mithril-era-regenesis-on-switch)	1m 58s
send-tests-results	17s
publish-crate-test	0s
unstable-release	0s
docker-mithril	0s
deploy-testing	0s
	54m 21s

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