filter "truncate-mac-address-to-24-bits": support more AVM UPnP device UUIDs

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

gitconfig

@@ -43,7 +43,7 @@
 	textconv = od -t x1z --
 
 [filter "truncate-mac-address-to-24-bits"]
-	clean = sed -E -e 's/\\b([[:xdigit:]]{2}(:[[:xdigit:]]{2}){2})(:[[:xdigit:]]{2}){3}\\b/\\1:…/g' -e 's/(-bccb-40e7-8e6c-[[:xdigit:]]{6})[[:xdigit:]]{6}\\b/\\1…/gI'
+	clean = sed -E     -e 's/(^|[^[:xdigit:]:])([[:xdigit:]]{2}(:[[:xdigit:]]{2}){2})(:[[:xdigit:]]{2}){3}([^[:xdigit:]:]|$)/\\1\\2:…\\5/g'     -e 's/(-bccb-40e7-(8e6c|9f6c)-[[:xdigit:]]{6})[[:xdigit:]]{6}([^[:xdigit:]]|$)/\\1…\\3/gI'
 	smudge = cat
 	required = true