Disable CC ratification when number of members is below ppCommitteeMinSize

[Soupstraw]

Description

This PR fixes the voting thresholds so that if the size of active CC members is below ccMinSize, then the CC cannot pass any proposals. The previous implementation did not check how many CC members have resigned, thus counting all of the CC members as active members.

resolves #4204

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated
• When applicable, versions are updated in .cabal and CHANGELOG.md files according to the
  versioning process.
• The version bounds in .cabal files for all affected packages are updated. If you change the bounds in a cabal file, that package itself must have a version increase. (See RELEASING.md)
• All visible changes are prepended to the latest section of a CHANGELOG.md for the affected packages. New section is never added with the code changes. (See RELEASING.md)
• Code is formatted with fourmolu (use scripts/fourmolize.sh)
• Cabal files are formatted (use scripts/cabal-format.sh)
• hie.yaml has been updated (use scripts/gen-hie.sh)
• Self-reviewed the diff

[teodanciu]

I have some questions about this, maybe we could discuss it in the meeting today?

[teodanciu]

Looks good to me.
Would you mind changing the commit message to specify that it changes the voting committee threshold calculation to take into account member resignation?
It's will make our life easier when we have to produce release notes and cardano updates.

[Lucsanszky]

Quickly added a comment for now but I'm planning to have a better look at this later today.