glibc: Fix CVE-2023-4911 "Looney Tunables"

glibc: Fix CVE-2023-4911 "Looney Tunables"

Take the patch from the source for Debian's glibc 2.31-13+deb11u7
package, the changelog for which starts with:

 glibc (2.31-13+deb11u7) bullseye-security; urgency=medium

   * debian/patches/any/local-CVE-2023-4911.patch: Fix a buffer overflow in the
     dynamic loader's processing of the GLIBC_TUNABLES environment variable
     (CVE-2023-4911).

This addresses the "Looney Tunables" vulnerability described at
https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>