Bump version to 5.0.0-beta1

Signed-off-by: Julius Härtl <jus@bitgrid.net>

appinfo/info.xml

@@ -6,7 +6,7 @@
 	<description><![CDATA[This application can connect to a Collabora Online (or other) server (WOPI-like Client). Nextcloud is the WOPI Host. Please read the documentation to learn more about that.
 
 You can also edit your documents off-line with the Collabora Office app from the **[Android](https://play.google.com/store/apps/details?id=com.collabora.libreoffice)** and **[iOS](https://apps.apple.com/us/app/collabora-office/id1440482071)** store.]]></description>
-	<version>5.0.0-dev1</version>
+	<version>5.0.0-beta1</version>
 	<licence>agpl</licence>
 	<author>Collabora Productivity based on work of Frank Karlitschek, Victor Dubiniuk</author>
 	<types>