Merge pull request lightstep#54 from lightstep/sarah/LS-5226

LS-5226: Make requests dependency version more flexible

Author: frenchfrywpepper

setup.py

@@ -12,7 +12,7 @@
                       'six',
                       'basictracer>=2.2,<2.3',
                       'googleapis-common-protos==1.5.3',
-                      'requests==2.19.1'],
+                      'requests>=2.19,<3.0'],
     tests_require=['pytest',
                    'sphinx',
                    'sphinx-epytext'],