Bump pip from 21.1 to 21.1.1 in /docker/build_scripts (#1075)
Bump pip from 21.1 to 21.1.1 in /docker/build_scripts (#1075)

Bumps [pip](https://github.com/pypa/pip) from 21.1 to 21.1.1.
- [Release notes](https://github.com/pypa/pip/releases)
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](https://github.com/pypa/pip/compare/21.1...21.1.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
manylinux/manylinux,pypa/manylinux,pypa/manylinux,pypa/manylinux,manylinux/manylinux