Update GEOS_Util version to v2.1.9 (components.yaml)

v2.1.9 fixes issue with saltwater in remap_lake_landice_salt (GEOS-ESM/GEOS_Util#144)

Author: gmao-rreichle

components.yaml

@@ -36,7 +36,7 @@ GMAO_Shared:
 GEOS_Util:
   local: ./src/Shared/@GMAO_Shared/@GEOS_Util
   remote: ../GEOS_Util.git
-  tag: v2.1.8
+  tag: v2.1.9
   sparse: ./config/GEOS_Util.sparse
   develop: main