Ensure consistent code style in Powershell and Bash scripts

[jamescrosswell]

We are not 100 % consistent with indentation style in PowerShell, using a mix of Allman and Kernighan & Ritchie styles.

It probably doesn't matter which one we pick, as long as we're consistent... This is really just for code readability.

Also not the kind of thing we want to spend human processing power on. We should add something to the format workflow in CI to ensure consistent coding style for our scripts.

Originally posted by @Flash0ver in #4406 (comment)

[linear]

NET-403 Ensure consistent code style in Powershell and Bash scripts