[CI] add zombienet setup and run most integration tests from the encointer-node #542

Job	Run time
cargo-toml-fmt	10s
Primary build release for on (ubuntu-22.04)	31m 2s
create_artifacts (encointer, rococo)	9s
integration-test (bootstrap_demo_community.py --signer //Alice -w collective --batch-size 7 --wai...	2m 20s
integration-test (false)	1m 55s
create_artifacts (encointer, westend)	11s
integration-test (bootstrap_demo_community.py --signer //Alice -w collective --batch-size 7 --wai...	2m 21s
create_artifacts (encointer, kusama)	7s
integration-test (bootstrap_demo_community.py --signer //Alice -w collective --batch-size 7 --wai...	2m 9s
integration-test (bootstrap_demo_community.py --signer //Alice -w collective --batch-size 7 --wai...	2m 9s
integration-test (bot-community-test -f http://host.docker.internal:5000/api -w collective --batc...	2m 50s
Draft Release	0s
	45m 23s

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