Building with the UM7 bug-fix commit hash after rebasing dev-access-esm1p6

Author: manodeep

spack.yaml

@@ -27,7 +27,7 @@ spack:
       - 'nxglob=360 nyglob=300 blckx=30 blcky=300 mxblcks=1' # grid size and block size
     um7:
       require:
-      - '@git.03dce1df50d5972867125a5465187621e3448abb=access-esm1.6'
+      - '@git.d309438079d365094eaea25eb0e7041724f8b2da=access-esm1.6'
     cable:
       require:
       - '@2025.11.000'