Fix RefreshTokenGrantTokenServiceTest which was expecting the new refresh token to be converted to an access token rather than the old one

Author: Tom Reay

oauth2-server-core/src/test/java/nl/myndocs/oauth2/RefreshTokenGrantTokenServiceTest.kt

@@ -70,7 +70,7 @@ internal class RefreshTokenGrantTokenServiceTest {
         every { tokenStore.refreshToken(refreshToken) } returns token
         every { identityService.identityOf(client, username) } returns identity
         every { refreshTokenConverter.convertToToken(username, clientId, scopes) } returns newRefreshToken
-        every { accessTokenConverter.convertToToken(username, clientId, scopes, newRefreshToken) } returns accessToken
+        every { accessTokenConverter.convertToToken(username, clientId, scopes, token) } returns accessToken
 
         tokenService.refresh(refreshTokenRequest)