requirements: Update requests to 2.11.0

Improvements

- Added support for the ALL_PROXY environment variable.
- Reject header values that contain leading whitespace or newline characters to
  reduce risk of header smuggling.

Bugfixes

- Fixed occasional TypeError when attempting to decode a JSON response that
  occurred in an error case. Now correctly returns a ValueError.
- Requests would incorrectly ignore a non-CIDR IP address in the NO_PROXY
  environment variables: Requests now treats it as a specific IP.
- Fixed a bug when sending JSON data that could cause us to encounter obscure
  OpenSSL errors in certain network conditions (yes, really).
- Added type checks to ensure that iter_content only accepts integers and None
  for chunk sizes.
- Fixed issue where responses whose body had not been fully consumed would have
  the underlying connection closed but not returned to the connection pool,
  which could cause Requests to hang in situations where the HTTPAdapter had
  been configured to use a blocking connection pool.

Miscellaneous

- Updated bundled urllib3 to 1.16.
- Some previous releases accidentally accepted integers as acceptable header
  values. This release does not.

misc/requirements/requirements-codecov.txt

@@ -2,4 +2,4 @@
 
 codecov==2.0.5
 coverage==4.2
-requests==2.10.0
+requests==2.11.0

misc/requirements/requirements-pylint-master.txt

@@ -6,6 +6,6 @@ lazy-object-proxy==1.2.2
 mccabe==0.5.2
 -e git+https://github.com/PyCQA/pylint.git#egg=pylint
 ./scripts/dev/pylint_checkers
-requests==2.10.0
+requests==2.11.0
 six==1.10.0
 wrapt==1.10.8

misc/requirements/requirements-pylint.txt

@@ -7,7 +7,7 @@ lazy-object-proxy==1.2.2
 mccabe==0.5.2
 pylint==1.6.4
 ./scripts/dev/pylint_checkers
-requests==2.10.0
+requests==2.11.0
 six==1.10.0
 uritemplate.py==0.3.0
 wrapt==1.10.8