Properly triggers a change to the form values object so Formik knows …

…it's dirty (#21021)

airbyte-webapp/src/views/Connector/ConnectorForm/components/Sections/auth/useOauthFlowAdapter.tsx

@@ -41,7 +41,7 @@ function useFormikOauthAdapter(connector: ConnectorDefinitionSpecification): {
         values
       );
     } else {
-      newValues = merge(values, {
+      newValues = merge({}, values, {
         connectionConfiguration: completeOauthResponse,
       });
     }