feat(common): encode the SNARK aggregate signature as bytes in the certificate message - #3437

     5 files  ± 0     209 suites  ±0   2h 29m 3s ⏱️ + 11m 2s
 3 374 tests + 5   3 374 ✅ + 5  0 💤 ±0  0 ❌ ±0 
11 144 runs  +20  11 144 ✅ +20  0 💤 ±0  0 ❌ ±0 

Results for commit 59773cf. ± Comparison against earlier commit a37adb3.