bump to v27.0.0-rc.1

[s5suzuki]

• refactor autd3
• rename from from_freq_nearest to new_nearest
• return actual frequency by Sine,Square::freq
• use Arc<Vec<u8>> instead of Vec<u8> as ModulationCalcResult
• bump to v27.0.0-rc.1

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (80ae858) to head (71ce6ae).

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #34   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          139       139           
  Lines        10501     10519   +18     
=========================================
+ Hits         10501     10519   +18     

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