ci: fix size.json path for app

tools/ci/idf_ci/uploader.py

@@ -60,7 +60,7 @@ class AppUploader(AppDownloader):
             DEFAULT_BUILD_LOG_FILENAME,
         ],
         ArtifactType.SIZE_REPORTS: [
-            '**/build*/size.json',
+            'size.json',
         ],
     }