in 57683c1a50 we fixed the `token` error,
but removed the checkout part which causing now the following error
```
failed to run git: fatal: not a git repository (or any of the parent directories): .git
```
Adding the repo checkout stage to avoid such error
Fixes: https://github.com/scylladb/scylladb/issues/22765Closesscylladb/scylladb#23641