v0.15.7

This release contains dotenvy 0.15.7.

dotenvy_macro version was bumped from 0.15.1 to 0.15.7.
dotenvy_codegen_impl, an internal dependency, is now deprecated due to no longer being needed. It has been moved here.

Added

• override existing envv vars (PR #41 by tshepang and PR #47 by LeoniePhiline)
• contribution guide (PR #28 by sonro)

Changed

• MSRV updated to 1.56.1
• removed dotenv_codegen_impl and proc_macro_hack dependencies (PR #45 by sonro)
• improved examples by handling errors, rather than using unwrap (PR #52 by LeoniePhiline)
• Iter now public in the crate root (PR #51 by LeoniePhiline)