bump version to 0.3.1

Author: Roger-luo

Project.toml

@@ -1,7 +1,7 @@
 name = "IBMQClient"
 uuid = "02860bad-daa6-4506-8736-4a3616c18085"
 authors = ["Roger-luo <[email protected]> and contributors"]
-version = "0.3.0"
+version = "0.3.1"
 
 [deps]
 Configurations = "5218b696-f38b-4ac9-8b61-a12ec717816d"
@@ -21,3 +21,7 @@ HTTP = "0.9"
 JSON = "0.21"
 URIs = "1"
 julia = "1.6"
+
+[extras]
+
+[targets]