Update runtests.jl

Author: ChrisRackauckas

test/runtests.jl

@@ -14,7 +14,7 @@ const GROUP = get(ENV, "GROUP", "All")
 const is_APPVEYOR = Sys.iswindows() && haskey(ENV,"APPVEYOR")
 
 @time begin
-  if GROUP == "All" || GROUP == "Interface"
+  if GROUP == "All" || GROUP == "Interface1"
     @time @safetestset "First Rand Tests" begin include("first_rand_test.jl") end
     @time @safetestset "Inference Tests" begin include("inference_test.jl") end
     @time @safetestset "Linear RODE Tests" begin include("rode_linear_tests.jl") end