Fix install path for metainfo XML file in multiflexi-common.install

Author: Vitexus

debian/multiflexi-common.install

@@ -1,3 +1,3 @@
 debian/conf/multiflexi.env etc/multiflexi
 multiflexi-common.svg	usr/share/icons/hicolor/scalable/apps/
-cz.vitexsoftware.multiflexi_common.metainfo.xml	usr/share/metainfo/
+debian/cz.vitexsoftware.multiflexi_common.metainfo.xml	usr/share/metainfo/