Run MEV on some Prater/Goerli nodes

[tersec]

This is going to be the main long-lived, ongoing testnet, since first Kiln then Ropsten are scheduled for deprecation this year.

One or two nodes should be fine, but it'd probably be better for them to be individually not terribly larger, no more than in the low hundreds of validators until status-im/nimbus-eth2#3998 is fixed, at which point it won't matter how many validators are present/active.

[jakubgs]

I've configured two unstable nimbus.prater nodes with the payload builder: cca16d27

infra-nimbus/ansible/group_vars/nimbus.prater.yml

Lines 95 to 105 in cca16d2

	'metal-04.he-eu-hel1.nimbus.prater': # 30 each
	- { branch: 'stable', start: 20044, end: 20074, build_freq: '*-*-* 11:00:00' }
	- { branch: 'testing', start: 20104, end: 20134, build_freq: '*-*-* 15:00:00', nim_commit: 'version-1-6' }
	- { branch: 'unstable', start: 20074, end: 20104, build_freq: '*-*-* 13:00:00', payload_builder: true }
	- { branch: 'libp2p', start: 20134, end: 20164, build_freq: '*-*-* 17:00:00', nim_flags: '-d:json_rpc_websocket_package=websock' }
	'metal-05.he-eu-hel1.nimbus.prater': # 60 each
	- { branch: 'stable', start: 20164, end: 20224, build_freq: '*-*-* 11:00:00' }
	- { branch: 'testing', start: 20284, end: 20344, build_freq: '*-*-* 15:00:00', nim_commit: 'version-1-6' }
	- { branch: 'unstable', start: 20224, end: 20284, build_freq: '*-*-* 13:00:00', payload_builder: true, open_libp2p_ports: false }
	- { branch: 'libp2p', start: 20344, end: 20404, build_freq: '*-*-* 17:00:00', nim_commit: 'version-1-6', nim_flags: '-d:json_rpc_websocket_package=websock' }

Will this work for you?

[tersec]

looks good

[jakubgs]

Cool.