ci: 替换 toUnique 为 Set，兼容 Jenkins Sandbox

Jenkinsfile

@@ -92,7 +92,7 @@ pipeline {
                         def propName = mod == 'sdk-bugcollect-plugin' ? 'SDK_BUGCOLLECT_VERSION' : "SDK_${mod.replace('sdk-', '').toUpperCase()}_VERSION"
                         [mod, propName]
                     }
-                    def uniquePropNames = propNameByModule.values().toUnique()
+                    def uniquePropNames = propNameByModule.values() as Set
 
                     def versionArgs = []
                     def publishedVersions = []