fix: add go option in proto to be able to import pb.Proof

[vgonkivs]

Overview

Without go_option it is not possible to import pb.Proof in other proto files.

Checklist

• New and updated code has appropriate documentation
• New and updated code has new and/or updated testing
• Required CI checks are passing
• Visual proof for any user facing features like CLI or documentation updates
• Linked issues closed with keywords

[codecov]

Codecov Report

Merging #226 (c996475) into master (9d22de9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #226   +/-   ##
=======================================
  Coverage   65.20%   65.20%           
=======================================
  Files           6        6           
  Lines         891      891           
=======================================
  Hits          581      581           
  Misses        293      293           
  Partials       17       17           

Impacted Files	Coverage Δ
pb/proof.pb.go	0.72% <ø> (ø)