replace println with sh_println

Foundry uses a shell abstraction to manage screen output. Currently the codebase has some uses of `println!` macros. These can dirty different outputs and should be replaced with `sh_println!`

Search the codebase for remaining println! macro uses and inspect the existing sh_println! shell abstraction before changing them. Replace the applicable direct output calls so screen output uses the abstraction, then run the project's existing checks to confirm the code still builds and tests pass.

Written by the indexing model from the issue text.