test collator selection on paseo

[brenzi]

Test this PR: https://github.com/polkadot-fellows/runtimes/pull/270

• [x] upgrade and migration works, injecting invulnerables: producing blocks after mig without changing any keys
• [x] rotate session keys for collators
  • [x] curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "author_rotateKeys", "params": [] }' http://localhost:9305/ (on bezzera, currently managing keys 2,3,4,5
  • [x] as invulnerable02, setKey (need to wait for next session to take effect...)
  • [x] session.nextKeys is indeed set to new session key for collator01 at next
  • [x] at next session (currently at #0. invulnerable02 is still producing blocks
• [ ] sync new collator and apply as candidate
  • [ ] curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "author_rotateKeys", "params": [] }' http://localhost:9403/ -> 0x14a9ce066467dca785df80d4eebe31d68bd42683a4d304c4c90e20a9d6811d63
  • [ ] send 10 ROC to candidate
  • [ ] session.setKeys
  • [ ] collatorSelection.registerAsCandidate will lock 5 ROC deposit
  • [ ] council setDesiredCandidates(3) propose
  • [ ] new collator proposes blocks (wait for next session)

[brenzi]

all works on mainnet already