Update bundled PSScriptAnalyzer to `v1.20.0`

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.

Summary

We just got PSScriptAnalzyer v1.20.0 shipped, and so should update our bundled module!

Proposed Design

No response

[andschwa]

It’s updated in PSES, this will ship in the next preview!

[bergmeister]

Had a go at testing it end to end and looked at test cases implemented for this new config option from a community member. Although it’s an option of a ‘formatting rule’, it actually turns it out it has not materialistic impact on formatting itself. Let me explain: this PSSA setting was just added for the use case of people wanting to lint their formatting using Invoke-ScriptAnalyzer where 2 rule combinations were contradicting themselves. When it comes to formatting because of the magic way the formatter works (it iteratively re-runs formatting rules until it’s happy), the red herring violation from the rule shows up in the end result of the formatted string luckily. So I guess the TL;DR is that we actually do not need to expose this new setting because it would not be of any value from a formatting perspective… 😃