Bump Gridap version [compat] to 0.19.6

Author: amartinhuertas

Project.toml

@@ -21,7 +21,7 @@ BlockArrays = "1"
 CircularArrays = "1.4.0"
 FillArrays = "1"
 ForwardDiff = "0.10, 1"
-Gridap = "0.19.4"
+Gridap = "0.19.6"
 LinearAlgebra = "1"
 MPI = "0.16, 0.17, 0.18, 0.19, 0.20"
 PartitionedArrays = "0.3.3"