fix(api): don't lpd for each step in a mix

[ryanthecoder]

Overview

If an instrument is set to have Liquid Presence Detection on and their is a call to instrument.mix then the pipette will exit the liquid, do a LPD and then re-enter for each cycle. This change makes it so that it saves the state of the instrument, does LPD on the first aspirate and then turns LPD off. Once Mix is complete then LPD is toggled back to whatever state it was in before.

Test Plan and Hands on Testing

Changelog

Review requests

Risk assessment

Low: If an error somehow occurs during the mix cycle and the command is bypassed then the instrument may be left with LPD off.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.43%. Comparing base (f793e65) to head (7b3611a).
Report is 71 commits behind head on edge.

Additional details and impacted files

@@           Coverage Diff           @@
##             edge   #16310   +/-   ##
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  Coverage   92.43%   92.43%           
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  Files          77       77           
  Lines        1283     1283           
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  Hits         1186     1186           
  Misses         97       97           

Flag	Coverage Δ
g-code-testing	92.43% <ø> (ø)

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[sfoster1]

now that it's on edge we should target on next api version

[sfoster1]

Looks good but add a test before merging please