feat: qualify nodes by minimum cfe version

[dandanlen]

Pull Request

Closes: PRO-836

Checklist

Please conduct a thorough self-review before opening the PR.

• I am confident that the code works.
• I have updated documentation where appropriate.

Summary

This allows us to set a minimum CFE version in the validator pallet config. Any cfes reporting a version number below this will be excluded from keygen.

[linear]

PRO-836 CFE Version based auction qualification

We want to add an extra auction qualification criterion based on the reported cfe versions.

When a new runtime upgrade version is pending in NextCompatibilityVersion in the environment pallet, we should disqualify nodes from auctions if they have not updated their CFE to a compatible version.

May need coordination with the product team to integrate this nicely in the UI david

[codecov]

Codecov Report

Merging #4003 (cfb2385) into main (c00a008) will increase coverage by 0%.
The diff coverage is 84%.

@@          Coverage Diff          @@
##            main   #4003   +/-   ##
=====================================
  Coverage     72%     72%           
=====================================
  Files        366     366           
  Lines      57317   57384   +67     
  Branches   57317   57384   +67     
=====================================
+ Hits       41380   41436   +56     
- Misses     13845   13854    +9     
- Partials    2092    2094    +2     

Files Changed	Coverage Δ
state-chain/pallets/cf-funding/src/lib.rs	69% <0%> (ø)
state-chain/runtime/src/lib.rs	39% <ø> (ø)
state-chain/pallets/cf-validator/src/lib.rs	74% <41%> (-1%)	⬇️
state-chain/traits/src/lib.rs	52% <50%> (-1%)	⬇️
state-chain/pallets/cf-validator/src/tests.rs	97% <100%> (+<1%)	⬆️

... and 3 files with indirect coverage changes

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