Update alloy-primitives to 0.8

[michaelsproul]

Resolve the circular dependency issue with alloy-primitives after the release of:

• Remove ethereum_ssz dependency alloy-rs/core#701

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.54%. Comparing base (1900f5c) to head (d222492).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #28   +/-   ##
=======================================
  Coverage   80.54%   80.54%           
=======================================
  Files          11       11           
  Lines         473      473           
=======================================
  Hits          381      381           
  Misses         92       92           

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