Regenerate feeds after upgrades

src/freedombone-app-smolrss

 
     # update to the next commit
     set_repo_commit "/var/www/$SMOLRSS_DOMAIN_NAME/htdocs" "smolrss commit" "$SMOLRSS_COMMIT" "$SMOLRSS_REPO"
+
+    cd "/var/www/$SMOLRSS_DOMAIN_NAME/htdocs" || return
+    ./create_feeds feeds.txt > feeds.xml
+
     chown -R www-data:www-data "/var/www/${SMOLRSS_DOMAIN_NAME}/htdocs"
 }