Handle DNF5 install script (#3026)

release_files/install.sh

@@ -239,7 +239,12 @@ install_netbird() {
     dnf)
         add_rpm_repo
         ${SUDO} dnf -y install dnf-plugin-config-manager
-        ${SUDO} dnf config-manager --add-repo /etc/yum.repos.d/netbird.repo
+        if [[ "$(dnf --version | head -n1 | cut -d. -f1)" > "4" ]];
+        then
+          ${SUDO} dnf config-manager addrepo --from-repofile=/etc/yum.repos.d/netbird.repo
+        else
+          ${SUDO} dnf config-manager --add-repo /etc/yum.repos.d/netbird.repo
+        fi
         ${SUDO} dnf -y install netbird
 
         if ! $SKIP_UI_APP; then