Bumps [httplib2](https://github.com/httplib2/httplib2) from 0.9.2 to 0.18.0. - [Release notes](https://github.com/httplib2/httplib2/releases) - [Changelog](https://github.com/httplib2/httplib2/blob/master/CHANGELOG) - [Commits](https://github.com/httplib2/httplib2/compare/0.9.2...v0.18.0) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>