refactor(lintstaged): resilience on cspell error reporting (#6335)

We don't want `cspell` to throw an error in case that it's being run by `lintstaged` and the current files shouldn't be checked due to it's matching the files pattern to get ignored.

Author: mfranzke

.config/.lintstagedrc.js

@@ -13,5 +13,5 @@ export default {
 		() => 'npm install --package-lock-only --ignore-scripts',
 		'npm run lint:package-json'
 	],
-	'*': 'cspell --config .config/cspell.config.ts'
+	'*': 'cspell --config .config/cspell.config.ts --no-must-find-files'
 };