V2: magic-sdk's testMode not working: magic_auth_login_with_email_otp_testing_mode - Method not supported

[smoove]

Describe the bug
Enabling testMode in the Magic SDK configuration and trying to login with email OTP throws an error "Method not supported".

This message pops up in the HardHat console when trying to sign in: magic_auth_login_with_email_otp_testing_mode - Method not supported

Config:

[...]
magicSdkConfiguration: {
    testMode: true,
    network: {
        rpcUrl: 'http://localhost:8545',
        chainId: 31337,
    },
},
[...]

It worked fine before upgrading wagmi, viem and the connector to V2.

To Reproduce
Enable testMode and try to login with email OTP.

Expected behavior
Signing in to work.

Desktop (please complete the following information):

• OS: Arch Linux
• Browser Brave
• Version 1.65.114 Chromium: 124.0.6367.60 (Official Build) (64-bit)