fix: migrate release-please to googleapis/release-please-action@v5

[talalashraf]

GitHub removes Node ≤20 action runtimes from runners on 2026-09-16 — changelog. The old release-please action is archived on node16; the maintained fork runs on node24:

• google-github-actions/release-please-action@v3 (node16, archived) → googleapis/release-please-action@v5 (node24)
• dropped the removed package-name input (v5 reads it from package.json)

References

• https://linear.app/0xproject/issue/PLA-1666/upgrade-all-node-20-github-actions-org-wide-before-runner-removal

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (6791bc2) to head (1b3cf82).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #117   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines          210       210           
  Branches        42        42           
=========================================
  Hits           210       210           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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