PlaylistId URI syntax is different from the one provided by spotify

[JCGdev]

Describe the bug
The SpotifyId URI's regex expects a different syntax from the Spotify's provided URI of a Playlist.

To Reproduce
SpotifyId id = PlaylistId.fromUri("spotify:playlist:4tYRZ7mZVEINuvu7ns4rQB");

Expected behavior
The URI's regex should match the Spotify's provided URI.

Screenshots/Stracktraces/Logs

Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Not a Spotify playlist ID: spotify:playlist:4tYRZ7mZVEINuvu7ns4rQB
	at xyz.gianlu.librespot.metadata.PlaylistId.fromUri(PlaylistId.java:43)
	at main.java.core.media.Playlist.<init>(Playlist.java:28)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2313)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6626)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3389)
	at java.desktop/java.awt.Component.processEvent(Component.java:6391)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5001)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4833)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4575)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4833)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:716)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:746)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:744)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:743)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Version/Commit
librespot-api-1.6.1

[devgianlu]

Playlist URI did change, but haven't really looked into the backwards compatibility.

BTW, I don't really like that "main.java.gui.downloader.DownloadButtonListener" wording there. Please consider removing all librespot references in your program.

From the README:

We (the librespot-org organization and me) DO NOT encourage piracy and DO NOT support any form of downloader/recorder designed with the help of this repository and in general anything that goes against the Spotify ToS. If you're brave enough to put at risk this entire project, just don't publish it. This is meant to provide support for all those devices that are not officially supported by Spotify.

[JCGdev]

Don't worry, it's for private use. I'll not release something against Spotify's ToS as will get taken down. Thanks for your time :)