Update copyright

Author: srenon

etc/adminhtml/system.xml

@@ -19,7 +19,7 @@
                 <label>About Form Field Manager</label>
                 <comment>
                     <![CDATA[
-                    <strong>Copyright © 2021 <a href="http://www.magepal.com" target="_blank">www.magepal.com</a> / <a href="mailto:support@magepal.com">support@magepal.com</a></strong><br />
+                    <strong>Copyright © 2022 <a href="http://www.magepal.com" target="_blank">www.magepal.com</a> / <a href="mailto:support@magepal.com">support@magepal.com</a></strong><br />
                     Discover other must have extensions at <a href="http://www.magepal.com" target="_blank">www.magepal.com</a>. Thanks for choosing MagePal Extensions.<br/><br/>
                     <hr class="magepal-hr" />
                   ]]>