upgrade test-case

Author: syphar

Cargo.lock

@@ -122,7 +122,7 @@ criterion = "0.4"
 kuchiki = "0.8"
 rand = "0.8"
 mockito = "0.31.0"
-test-case = "2.0.0"
+test-case = "3.0.0"
 aws-smithy-client = { version = "0.54.4", features = ["test-util"]}
 aws-smithy-http = "0.54.4"
 indoc = "1.0.7"