go/consensus/roothash: Track runtime proposer liveness

[peternose]

The roothash application now monitors the runtime proposer liveness, which runtimes can utilize to penalize proposers with insufficient commitments.

[codecov]

Codecov Report

Merging #5334 (67711fa) into master (4425f68) will decrease coverage by 0.24%.
The diff coverage is 91.17%.

@@            Coverage Diff             @@
##           master    #5334      +/-   ##
==========================================
- Coverage   67.64%   67.40%   -0.24%     
==========================================
  Files         525      525              
  Lines       55816    55899      +83     
==========================================
- Hits        37754    37676      -78     
- Misses      13534    13691     +157     
- Partials     4528     4532       +4     

Files Changed	Coverage Δ
go/registry/api/runtime.go	53.06% <ø> (ø)
go/consensus/cometbft/apps/roothash/roothash.go	73.02% <60.00%> (-0.14%)	⬇️
...o/consensus/cometbft/apps/roothash/transactions.go	70.21% <66.66%> (-5.34%)	⬇️
go/scheduler/api/api.go	60.37% <70.58%> (-0.23%)	⬇️
go/consensus/cometbft/apps/roothash/liveness.go	83.33% <100.00%> (+5.33%)	⬆️
go/roothash/api/liveness.go	100.00% <100.00%> (ø)
go/roothash/tests/tester.go	90.20% <100.00%> (+0.86%)	⬆️

... and 55 files with indirect coverage changes