make packages test dependencies only; add versions for [deps]

Project.toml

@@ -4,22 +4,27 @@ authors = ["Simon Byrne <[email protected]>"]
 version = "0.2.0"
 
 [deps]
-ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MPI = "da04e1cc-30fd-572f-bb4f-1f8673147195"
 MPIPreferences = "3da0fdf6-3ccc-4f1b-acd9-58baa6c99267"
 PETSc_jll = "8fa3689e-f0b9-5420-9873-adf6ccf46f2d"
-Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
-SparseDiffTools = "47a9eef4-7e08-11e9-0b38-333d64bd3804"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-UnicodePlots = "b8865327-cd53-5732-bb35-84acbb429228"
 
 [compat]
 MPI = "0.20"
-PETSc_jll = "3.21"
-julia = "1.9"
+MPIPreferences = "0.1"
+PETSc_jll = "~3.21"
+SparseArrays = "1.10"
+julia = "1.10"
 
 [extras]
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
+UnicodePlots = "b8865327-cd53-5732-bb35-84acbb429228"
+Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
+SparseDiffTools = "47a9eef4-7e08-11e9-0b38-333d64bd3804"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
+
+[targets]
+test = ["ForwardDiff", "UnicodePlots", "Test", "Plots", "SparseDiffTools", "Printf"]