Using cargo-mommy in CI

While you can of course cargo install cargo-mommy in CI, this can significantly slow down your CI runs~

To help with this, every cargo-mommy release since 0.3.0 comes with prebuilt binaries and shell/powershell installers, allowing mommy to be setup in CI quickly and easily~ 💕

See the install page for curl | sh and irm | iex expressions~

Note that if you use a Github CI Matrix and it covers Windows and Not Windows, run expressions will implicitly be a shell/powershell polyglot. If so, we recommend putting the "install cargo-mommy" expression as an argument to the Matrix (powershell on windows, shell everywhere else)~