Apply suggestions from code review

Co-authored-by: Zhaoyi Shen <11598433+szy21@users.noreply.github.com>

Author: Julians42

src/cache/cloud_fraction.jl

@@ -325,8 +325,7 @@ function set_ml_cloud_fraction!(
             ᶜmixing_length_field,
             ᶜ∇q,
             ᶜ∇θ,
-            Y.c.ρq_tot,
-            Y.c.ρ,
+            specific.(Y.c.ρq_tot, Y.c.ρ),
             ᶜts,
             thermo_params,
         )
@@ -337,8 +336,7 @@ function compute_ml_cloud_fraction(
     ᶜmixing_length_field,
     ᶜ∇q,
     ᶜ∇θ,
-    ρq_tot,
-    ρ,
+    q_tot
     ᶜts,
     thermo_params,
 )