Upgrade spring to 3x

[travikk]

Code of Conduct

• I agree to follow this project's Code of Conduct

What would you like to see changed/added?

Upgrade to sprig 3.x branch. There is a host of new functions that deal with OS paths (which are separator agnostic for windows/linux) that are currently not supported (specifically the os* functions).
This will make it easier to create templates that are parsing current path/folders.

[lnu]

Little typo, you mean sprig

=> can be helpful Masterminds/sprig#278

[github-actions]

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