Plugins: Perform plugin update check prior to uninstall (#36909)

* only uninstall if update is possible

* add .

* update lingo for clarity

pkg/plugins/models.go

@@ -158,3 +158,7 @@ type EnabledPlugins struct {
 	DataSources map[string]*DataSourcePlugin
 	Apps        []*AppPlugin
 }
+
+type UpdateInfo struct {
+	PluginZipURL string
+}