Add option "show_dialog" for Spotify resource owner

[willemverspyck]

Allow to set the optional "show_dialog" option for the Spotify resource owner: https://developer.spotify.com/documentation/web-api/tutorials/code-flow.

Whether or not to force the user to approve the app again if they’ve already done so. If false (default), a user who has already approved the application may be automatically redirected to the URI specified by redirect_uri. If true, the user will not be automatically redirected and will have to approve the app again.

[willemverspyck]

Tests failed due to:

Error: This request has been automatically failed because it uses a deprecated version of `actions/upload-artifact: v3`. Learn more: https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions/

Fix by upgrading to v4 and also added tests for PHP 8.4

[XWB]

👍 Thanks.