package/python-urllib3: security bump to version 1.26.6

Fix CVE-2021-33503: An issue was discovered in urllib3 before 1.26.5.
When provided with a URL containing many @ characters in the authority
component, the authority regular expression exhibits catastrophic
backtracking, causing a denial of service if a URL were passed as a
parameter or redirected to via an HTTP redirect.

https://github.com/urllib3/urllib3/blob/1.26.6/CHANGES.rst

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-urllib3/python-urllib3.hash

@@ -1,5 +1,5 @@
 # md5, sha256 from https://pypi.org/pypi/urllib3/json
-md5  e2a2039e22fc29b751e26b7042e8db2f  urllib3-1.26.4.tar.gz
-sha256  e7b021f7241115872f92f43c6508082facffbd1c048e3c6e2bb9c2a157e28937  urllib3-1.26.4.tar.gz
+md5  3a88ec3bcb761ca23df2c3583949be37  urllib3-1.26.6.tar.gz
+sha256  f57b4c16c62fa2760b7e3d97c35b255512fb6b59a259730f36ba32ce9f8e342f  urllib3-1.26.6.tar.gz
 # Locally computed sha256 checksums
 sha256  c37bf186e27cf9dbe9619e55edfe3cea7b30091ceb3da63c7dacbe0e6d77907b  LICENSE.txt

package/python-urllib3/python-urllib3.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-PYTHON_URLLIB3_VERSION = 1.26.4
+PYTHON_URLLIB3_VERSION = 1.26.6
 PYTHON_URLLIB3_SOURCE = urllib3-$(PYTHON_URLLIB3_VERSION).tar.gz
-PYTHON_URLLIB3_SITE = https://files.pythonhosted.org/packages/cb/cf/871177f1fc795c6c10787bc0e1f27bb6cf7b81dbde399fd35860472cecbc
+PYTHON_URLLIB3_SITE = https://files.pythonhosted.org/packages/4f/5a/597ef5911cb8919efe4d86206aa8b2658616d676a7088f0825ca08bd7cb8
 PYTHON_URLLIB3_LICENSE = MIT
 PYTHON_URLLIB3_LICENSE_FILES = LICENSE.txt
 PYTHON_URLLIB3_CPE_ID_VENDOR = python