add PHP version as dependency

appinfo/info.xml

@@ -26,7 +26,7 @@ If you like this application and if you want to support the development:
 * [Donate with liberapay](https://liberapay.com/deblan)
 * [Leave a comment](https://apps.nextcloud.com/apps/side_menu#comments)
 ]]></description>
-    <version>1.25.0</version>
+    <version>1.25.1</version>
     <licence>agpl</licence>
     <author mail="contact@deblan.fr" homepage="https://www.deblan.io/">Simon Vieille</author>
     <namespace>SideMenu</namespace>
@@ -47,6 +47,7 @@ If you like this application and if you want to support the development:
     <screenshot>https://gitnet.fr/deblan/side_menu/raw/branch/master/screenshots/personal_settings.png</screenshot>
     <dependencies>
         <nextcloud min-version="18" max-version="22"/>
+        <php min-version="7.3"/>
     </dependencies>
     <settings>
         <admin>OCA\SideMenu\Settings\Admin</admin>