Fix the test setup to create the version we're trying to yank

This makes the error returned what we're really trying to test for

Author: carols10cents

src/tests/krate.rs

@@ -1430,13 +1430,15 @@ fn yank_by_a_non_owner_fails() {
     let another_user = app.db_new_user("bar");
     let another_user = another_user.as_model();
     app.db(|conn| {
-        CrateBuilder::new("foo_not", another_user.id).expect_build(conn);
+        CrateBuilder::new("foo_not", another_user.id)
+            .version("1.0.0")
+            .expect_build(conn);
     });
 
     let json = token.yank("foo_not", "1.0.0").bad_with_status(200);
     assert_eq!(
         json.errors[0].detail,
-        "crate `foo_not` does not have a version `1.0.0`"
+        "must already be an owner to yank or unyank"
     );
 }