Add precompile step for rePCA

[palday]

This will hopefully make it easier to separate compile vs. runtime changes in performance.

Did behavior change? Did you add need features? If so, please update NEWS.md

• add entry in NEWS.md
• after opening this PR, add a reference and run docs/NEWS-update.jl to update the cross-references.

Should we release your changes right away? If so, bump the version:

• I've bumped the version appropriately

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.93%. Comparing base (de39654) to head (39b487f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #749   +/-   ##
=======================================
  Coverage   96.93%   96.93%           
=======================================
  Files          34       34           
  Lines        3358     3362    +4     
=======================================
+ Hits         3255     3259    +4     
  Misses        103      103           

Flag	Coverage Δ
current	96.87% <100.00%> (+<0.01%)	⬆️
minimum	96.80% <ø> (-0.03%)	⬇️
nightly	96.43% <ø> (ø)

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