fix: PRO-928: engine should wait until funded

[AlastairHolmes]

No description provided.

[linear]

PRO-928 Don't exit if account is unfunded

This is a regression related to engine version checking with subxt.

Previously, if the engine was started before the associated account was funded, it would wait until the funding event.

This is no longer the case since we now use subxt for ensure_cfe_version_record_up_to_date, to allow us to submit the version extrinsic dynamically without requiring runtime compatiblity.

We need to revert to the previous behaviour, while ensuring that an incompatible engine still submits its version number.

[codecov]

Codecov Report

Merging #4169 (9d7d5a3) into main (5026646) will decrease coverage by 0%.
The diff coverage is 18%.

@@          Coverage Diff           @@
##            main   #4169    +/-   ##
======================================
- Coverage     72%     72%    -0%     
======================================
  Files        379     380     +1     
  Lines      61910   62126   +216     
  Branches   61910   62126   +216     
======================================
+ Hits       44440   44497    +57     
- Misses     15150   15306   +156     
- Partials    2320    2323     +3     

Files	Coverage Δ
state-chain/pallets/cf-account-roles/src/lib.rs	76% <ø> (ø)
state-chain/primitives/src/lib.rs	63% <ø> (ø)
utilities/src/with_std.rs	72% <ø> (ø)
...tate_chain_observer/client/extrinsic_api/signed.rs	0% <0%> (ø)
utilities/src/with_std/cached_stream.rs	82% <0%> (-4%)	⬇️
utilities/src/with_std/try_cached_stream.rs	82% <82%> (ø)
...ne/src/state_chain_observer/client/base_rpc_api.rs	1% <0%> (-<1%)	⬇️
engine/src/state_chain_observer/client/mod.rs	12% <0%> (-3%)	⬇️

... and 5 files with indirect coverage changes

📣 Codecov offers a browser extension for seamless coverage viewing on GitHub. Try it in Chrome or Firefox today!

[AlastairHolmes]

I'm not going to be able to get to this for a few days, due to higher priority work (LP api).