fix: Update to PHP 8.1

Signed-off-by: Enjeck C. <patrathewhiz@gmail.com>

Author: enjeck

appinfo/info.xml

@@ -25,7 +25,7 @@ The Notes app is a distraction free notes taking app for [Nextcloud](https://www
 	<repository type="git">https://github.com/nextcloud/notes.git</repository>
 	<screenshot small-thumbnail="https://raw.githubusercontent.com/nextcloud/screenshots/master/apps/Notes/notes-thumbnail.jpg">https://raw.githubusercontent.com/nextcloud/screenshots/master/apps/Notes/notes.png</screenshot>
 	<dependencies>
-		<php min-version="8.0" max-version="8.4"/>
+		<php min-version="8.1" max-version="8.4"/>
 		<nextcloud min-version="30" max-version="34"/>
 	</dependencies>
 	<repair-steps>

psalm.xml

@@ -5,7 +5,7 @@
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
     errorBaseline="tests/psalm-baseline.xml"
-    phpVersion="8.0"
+    phpVersion="8.1"
 >
 	<stubs>
 		<file name="tests/stubs/ocp.php" preloadClasses="true"/>