package/tmux: set TMUX_CPE_ID_VALID

cpe:2.3:a:tmux_project:tmux is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Atmux_project%3Atmux

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/tmux/tmux.mk

@@ -8,6 +8,7 @@ TMUX_VERSION = 2.9a
 TMUX_SITE = https://github.com/tmux/tmux/releases/download/$(TMUX_VERSION)
 TMUX_LICENSE = ISC
 TMUX_LICENSE_FILES = COPYING
+TMUX_CPE_ID_VALID = YES
 TMUX_DEPENDENCIES = libevent ncurses host-pkgconf
 
 # 0001-Do-not-write-after-the-end-of-the-array-and-overwrit.patch