Updating dependencies

[t-heuser]

Hey!

I just wanted to try this package but I cannot install it as it required "symfony/finder" in either "^3.0 || ^4.0".
Can we bump the version up to be able to use this package along "symfony/finder" version ^5.0?
Would really appreciate that! I created a PR for this.

[telmopmota]

It would be nice to also add || ^6.0.