perf: use `--release` when watching

[anonrig]

It's useful to eliminate false positives when benchmarking and watching.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.20%. Comparing base (b5311b4) to head (34ca1b1). Report is 973 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5452   +/-   ##
=======================================
  Coverage   90.20%   90.20%           
=======================================
  Files         889      889           
  Lines       43529    43529           
  Branches      288      288           
=======================================
  Hits        39265    39265           
  Misses       4222     4222           
  Partials       42       42           

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.