fix: The component field can be empty

Task: https://pms.uniontech.com/task-view-385551.html

Author: xml

src/lastore-upgrade-query/upgrade_query.cc

@@ -26,7 +26,6 @@ bool UpgradePackage::Valid() const {
         CandidateVersion.empty() ||
         Architecture.empty() ||
         Codename.empty() ||
-        Component.empty() ||
         Site.empty() ||
         Filename.empty() ||
         Hash.empty()) {