TEMP: test pruning with a trivial comment change in m_bubbles.fpp

Removes one word from a comment to verify --only-changes runs ~38
bubble tests and skips the rest. Will be reverted before merge.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sbryngelson

src/simulation/m_bubbles.fpp

@@ -26,7 +26,7 @@ module m_bubbles
 
 contains
 
-    !> Function that computes the bubble radial acceleration based on bubble models
+    !> Function that computes the bubble radial acceleration based on models
         !!  @param fRho Current density
         !!  @param fP Current driving pressure
         !!  @param fR Current bubble radius