Bump urllib3 from 1.22 to 1.24.2

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.22 to 1.24.2.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/master/CHANGES.rst)
- [Commits](urllib3/urllib3@1.22...1.24.2)

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -5,18 +5,18 @@
 #    pip-compile --output-file requirements.txt requirements.in
 #
 asn1crypto==0.24.0        # via cryptography
-attrs==17.4.0
+attrs==17.4.0             # via -r requirements.in
 certifi==2018.1.18        # via requests
 cffi==1.11.5              # via cryptography
 chardet==3.0.4            # via requests
-configobj==5.0.0
-cryptography==2.3
+configobj==5.0.0          # via -r requirements.in
+cryptography==2.3         # via -r requirements.in
 idna==2.6                 # via cryptography, requests
-netaddr==0.7.19
-pillow==6.2.0
+netaddr==0.7.19           # via -r requirements.in
+pillow==6.2.0             # via -r requirements.in
 pycparser==2.18           # via cffi
-pyjwt==1.5.3
-requests==2.20.0
+pyjwt==1.5.3              # via -r requirements.in
+requests==2.20.0          # via -r requirements.in
 six==1.11.0               # via cryptography
-urllib3==1.22             # via requests
-werkzeug==0.15.3
+urllib3==1.24.2           # via requests
+werkzeug==0.15.3          # via -r requirements.in

requirements_test.txt

@@ -4,31 +4,31 @@
 #
 #    pip-compile --output-file requirements_test.txt requirements_test.in
 #
-asn1crypto==0.24.0
-attrs==17.4.0
-certifi==2018.1.18
-cffi==1.11.5
-chardet==3.0.4
-configobj==5.0.0
-coverage==4.4.1
-cryptography==2.3
-flake8==3.5.0
-hypothesis==3.46.1
-idna==2.6
+asn1crypto==0.24.0        # via -r requirements.txt, cryptography
+attrs==17.4.0             # via -r requirements.txt, hypothesis
+certifi==2018.1.18        # via -r requirements.txt, requests
+cffi==1.11.5              # via -r requirements.txt, cryptography
+chardet==3.0.4            # via -r requirements.txt, requests
+configobj==5.0.0          # via -r requirements.txt
+coverage==4.4.1           # via -r requirements_test.in, hypothesis, pytest-cov
+cryptography==2.3         # via -r requirements.txt
+flake8==3.5.0             # via -r requirements_test.in
+hypothesis==3.46.1        # via -r requirements_test.in
+idna==2.6                 # via -r requirements.txt, cryptography, requests
 mccabe==0.6.1             # via flake8
 mock==2.0.0               # via responses
-netaddr==0.7.19
+netaddr==0.7.19           # via -r requirements.txt
 pbr==3.1.1                # via mock
-pillow==6.2.0
+pillow==6.2.0             # via -r requirements.txt
 py==1.5.2                 # via pytest
 pycodestyle==2.3.1        # via flake8
-pycparser==2.18
+pycparser==2.18           # via -r requirements.txt, cffi
 pyflakes==1.6.0           # via flake8
-pyjwt==1.5.3
-pytest-cov==2.5.1
-pytest==3.1.3
-requests==2.20.0
-responses==0.3.0
-six==1.11.0
-urllib3==1.22
-werkzeug==0.15.3
+pyjwt==1.5.3              # via -r requirements.txt
+pytest-cov==2.5.1         # via -r requirements_test.in
+pytest==3.1.3             # via -r requirements_test.in, pytest-cov
+requests==2.20.0          # via -r requirements.txt, responses
+responses==0.3.0          # via -r requirements_test.in
+six==1.11.0               # via -r requirements.txt, cryptography, mock, responses
+urllib3==1.24.2           # via -r requirements.txt, requests
+werkzeug==0.15.3          # via -r requirements.txt