Security update for python-pip
This update for python-pip fixes the following issues:
- Fixed a directory traversal in _download_http_url() (bsc#1176262 CVE-2019-20916)
This update was imported from the SUSE:SLE-15:Update update project.
- Submitted by Matej Cepl (mcepl)
Fixed bugs
bnc#1176262
VUL-0: CVE-2019-20916: python3,python-pip: directory traversal in _download_http_url() function in src/pip/_internal/download.py