(codegen) Fix test dependency version to be exact.

Needed for releasing automation.

Author: theduke

juniper_codegen/Cargo.toml

@@ -22,7 +22,7 @@ regex = "1"
 lazy_static = "1.0.0"
 
 [dev-dependencies]
-juniper = { version = "0.11", path = "../juniper" }
+juniper = { version = "0.11.1", path = "../juniper" }
 
 [badges]
 travis-ci = { repository = "graphql-rust/juniper" }