Add pre-advance to RayleighInteractor

[davidsgr]

Pre-advances the Ranlux++ random number generator prior to entering the Rayleigh scattering. This improves performance and reduces thread divergence since it ensures that the Ranlux++ RNG will start with a fresh block of random bits.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.05%. Comparing base (9cc8df0) to head (d5dd09b).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2469      +/-   ##
===========================================
- Coverage    87.06%   87.05%   -0.01%     
===========================================
  Files         1412     1412              
  Lines        45172    45172              
  Branches     14253    13737     -516     
===========================================
- Hits         39328    39326       -2     
+ Misses        4713     4562     -151     
- Partials      1131     1284     +153     

Files with missing lines	Coverage Δ
...celeritas/optical/interactor/RayleighInteractor.hh	100.00% <ø> (ø)
src/corecel/random/engine/RanluxppRngEngine.hh	90.90% <ø> (ø)

... and 112 files with indirect coverage changes

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[github-actions]

Test summary

 5 692 files   9 285 suites   16m 40s ⏱️
 2 379 tests  2 333 ✅  46 💤 0 ❌
33 315 runs  33 147 ✅ 168 💤 0 ❌

Results for commit ecaf49a.

♻️ This comment has been updated with latest results.