nss: update to 3.73 (Security fix)

https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/

nss.be0

@@ -1,14 +1,14 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION nss-3.72-0
+# BEE_VERSION nss-3.73-0
 
 # see also http://linuxfromscratch.org/blfs/view/svn/postlfs/nss.html
 
-# https://archive.mozilla.org/pub/security/nss/releases/NSS_3_72_RTM/src/nss-3.72.tar.gz
-SRCURL[0]="https://beehive.molgen.mpg.de/dd2aedeb71abd2b7c8fa7ef32bfb3668/nss-3.72.tar.gz"
+# https://archive.mozilla.org/pub/security/nss/releases/NSS_3_73_RTM/src/nss-3.73.tar.gz
+SRCURL[0]="https://beehive.molgen.mpg.de/b4540bf98f6583b3fcf8101f846cf3bb/nss-3.73.tar.gz"
 
-# "https://www.linuxfromscratch.org/patches/blfs/svn/nss-3.72-standalone-1.patch"
-PATCHURL[0]="https://beehive.molgen.mpg.de/f8a7ce473bd61792ef182cf0fb2d359a/nss-3.72-standalone-1.patch"
+# "https://www.linuxfromscratch.org/patches/blfs/svn/nss-3.73-standalone-1.patch"
+PATCHURL[0]="https://beehive.molgen.mpg.de/f8a7ce473bd61792ef182cf0fb2d359a/nss-3.73-standalone-1.patch"
 
 build_in_sourcedir