Update eslint-config-prettier version in template installation docs

This is now the version used as standard in all Arduino Tooling projects, which the "template" is intended to be used
with.

Author: per1234

workflow-templates/check-javascript-task.md

@@ -31,7 +31,7 @@ The tool dependencies of this workflow are managed by [npm](https://www.npmjs.co
 Add the dependencies by running this command:
 
 ```text
-npm install --save-dev eslint@^8.55.0 eslint-config-prettier@^9.0.0
+npm install --save-dev eslint@^8.55.0 eslint-config-prettier@^9.1.0
 npx install-peerdeps --dev eslint-config-airbnb-base
 ```