The version of Ruby used by the script is not pinned to 2.7.1 and the script doesn't launch with Ruby 2.7.5

[MDziwny]

$ bundle install -j $(nproc) --path vendor
[DEPRECATED] The `--path` flag is deprecated because it relies on being remembered across bundler invocations, which bundler will no longer do in future versions. Instead please use `bundle config set --local path 'vendor'`, and stop using this flag
Your Ruby version is 2.7.5, but your Gemfile specified 2.7.1

I think the version of ruby should be pinned (and upgraded) to avoid this kind issue.

I'm not familiar with Ruby and won't be able to fix it in the next days, will see if I can do it next year if it's not fixed before.

PS: if it can help, one of my coworker has already fixed a similar issue: 72b9df8

[sobolevn]

PR is welcome!