Bump version from 1.20.2 to 1.20.3

Author: baggepinnen

lib/ControlSystemsBase/Project.toml

@@ -2,7 +2,7 @@ name = "ControlSystemsBase"
 uuid = "aaaaaaaa-a6ca-5380-bf3e-84a91bcd477e"
 authors = ["Dept. Automatic Control, Lund University"]
 repo = "https://github.com/JuliaControl/ControlSystems.jl.git"
-version = "1.20.2"
+version = "1.20.3"
 
 [deps]
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"