Update idf_tools.py

Author: Jason2866

tools/idf_tools.py

@@ -101,7 +101,7 @@ class WindowsError(OSError):  # type: ignore
 VERSION_REGEX_REPLACE_DEFAULT = r'\1'
 IDF_MAINTAINER = os.environ.get('IDF_MAINTAINER') or False
 TODO_MESSAGE = 'TODO'
-DOWNLOAD_RETRY_COUNT = 3
+DOWNLOAD_RETRY_COUNT = 5
 URL_PREFIX_MAP_SEPARATOR = ','
 IDF_TOOLS_INSTALL_CMD = os.environ.get('IDF_TOOLS_INSTALL_CMD')
 IDF_TOOLS_EXPORT_CMD = os.environ.get('IDF_TOOLS_INSTALL_CMD')