Bump ethereum_ssz version

[macladson]

Bumps ethereum_ssz to the latest version

If there are any other crates we should bump too we can add them to this PR, but I can't think of anything else we should bump

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.10%. Comparing base (89f90fd) to head (293fabe).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #75   +/-   ##
=======================================
  Coverage   57.10%   57.10%           
=======================================
  Files          10       10           
  Lines         345      345           
=======================================
  Hits          197      197           
  Misses        148      148           

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