security/nss: update to 3.109

Release Notes:
  https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_109.html

security/nss/Makefile

 PORTNAME=	nss
-PORTVERSION=	3.108
+PORTVERSION=	3.109
 CATEGORIES=	security
 MASTER_SITES=	MOZILLA/security/${PORTNAME}/releases/${DISTNAME:tu:C/[-.]/_/g}_RTM/src
 

security/nss/distinfo

-TIMESTAMP = 1738790649
-SHA256 (nss-3.108.tar.gz) = a0f6fcb5dbadc1635b43827517a979e3a6d005d0788527802a6b31e2c5f66eec
-SIZE (nss-3.108.tar.gz) = 76630022
+TIMESTAMP = 1740841924
+SHA256 (nss-3.109.tar.gz) = bea46c256118cd8910202f05339627d75291f13b80054527df58419b9d29c18b
+SIZE (nss-3.109.tar.gz) = 76610986