package/python-future: add CPE identifier

The cpe:2.3:a:pythoncharmers:python-future:*:*:*:*:*:*:*:* is
valid for this package.

See https://nvd.nist.gov/products/cpe/detail/6E3F033B-5565-461B-8450-D23E68419313

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit 96899dd6920c451e6cba412da4cb8959f62b10bf)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/python-future/python-future.mk

@@ -10,5 +10,6 @@ PYTHON_FUTURE_SITE = https://files.pythonhosted.org/packages/a7/b2/4140c69c6a664
 PYTHON_FUTURE_SETUP_TYPE = setuptools
 PYTHON_FUTURE_LICENSE = MIT
 PYTHON_FUTURE_LICENSE_FILES = LICENSE.txt
+PYTHON_FUTURE_CPE_ID_VENDOR = pythoncharmers
 
 $(eval $(python-package))