Bump httplib2 from 0.10.3 to 0.19.0

Bumps [httplib2](https://github.com/httplib2/httplib2) from 0.10.3 to 0.19.0.
- [Release notes](https://github.com/httplib2/httplib2/releases)
- [Changelog](https://github.com/httplib2/httplib2/blob/master/CHANGELOG)
- [Commits](httplib2/httplib2@v0.10.3...v0.19.0)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

setup.py

@@ -8,7 +8,7 @@
       version='1.0.4a',
       description='Simple python wrapper for LOTAME API',
       install_requires=[
-          'httplib2==0.10.3',
+          'httplib2==0.19.0',
           'urllib3>=1.23',
           'requests==2.21.0'
       ],