`eulercli check` no longer works since the solutions repo moved

Love this project! Thank you for building and sharing this! Excited to use as someone who just learned about Project Euler.

I noticed that `eulercli check` isn't returning any answers:
```
The correct answer for problem 2 is unknown
```

HTTP GET on the old URL returns 404 Not Found since the repo was moved from _luckytoilet/projecteuler-solutions_ to _lucky-bai/projecteuler-solutions_.