Convert override syntax to new version

For details see:
https://docs.yoctoproject.org/next/migration-guides/migration-3.4.html

Note that due to this change the latest point release of Dunfell is
the minimal requirement to be compatible with this layer.

recipes-application/network/kdeconnect-kde.inc

@@ -39,7 +39,7 @@ EXTRA_OECMAKE += "-DOE_QCA_PATH_HOST_ROOT=${STAGING_DIR_HOST}"
 # workaround for missing variable, which is only used for Windows builds
 EXTRA_OECMAKE += "-DCMAKE_SYSTEM_VERSION=0.0.0"
 
-FILES_${PN} += " \
+FILES:${PN} += " \
     ${datadir}/Thunar \
     ${datadir}/contractor \
     ${datadir}/kdeconnect \
@@ -49,6 +49,6 @@ FILES_${PN} += " \
     ${datadir}/zsh \
 "
 
-RDEPENDS_${PN} += " \
+RDEPENDS:${PN} += " \
     kpeoplevcard \
 "