improve compat for automatic bot automerge

Author: jarlebring

Project.toml

@@ -20,4 +20,13 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 SuiteSparse = "4607b0f0-06f3-5cda-b6b1-a6196a1729e9"
 
 [compat]
-julia = "1"
+julia = "^1"
+ArnoldiMethod = "^0"
+FFTW = "^1"
+IterativeSolvers = "^0"
+LinearMaps = "^2"
+Polynomials = "^0"
+Reexport = "^0"
+SpecialFunctions = "^0"
+
+