Bump phpstan/phpstan from 1.12.7 to 2.1.17 in /app-auth/graphapponlytutorial#340

dependabot[bot] wants to merge 1 commit intomainmicrosoftgraph/msgraph-training-php:mainfrom

dependabot/composer/app-auth/graphapponlytutorial/phpstan/phpstan-2.1.17microsoftgraph/msgraph-training-php:dependabot/composer/app-auth/graphapponlytutorial/phpstan/phpstan-2.1.17Copy head branch name to clipboard