Bump codenames in docs in preparation for Debian 12

doc/apt-verbatim.ent

@@ -277,17 +277,17 @@
 <!ENTITY apt-product-version "2.5.5">
 
 <!-- (Code)names for various things used all over the place -->
-<!ENTITY debian-oldstable-codename "buster">
-<!ENTITY debian-stable-codename "bullseye">
-<!ENTITY debian-testing-codename "bookworm">
-<!ENTITY debian-stable-version "11">
-<!ENTITY ubuntu-codename "hirsute">
+<!ENTITY debian-oldstable-codename "bullseye">
+<!ENTITY debian-stable-codename "bookworm">
+<!ENTITY debian-testing-codename "trixie">
+<!ENTITY debian-stable-version "12">
+<!ENTITY ubuntu-codename "jammy">
 
 <!-- good and bad just refers to matching and not matching a pattern…
  It is not a remark about the specific perl version.
  There is no way perl could be classified "good" (or "bad") in any version… -->
-<!ENTITY good-perl "5.20">
-<!ENTITY bad-perl "5.24">
+<!ENTITY good-perl "5.32">
+<!ENTITY bad-perl "5.36">
 
 <!-- Arguments -->
 <!ENTITY synopsis-arg-option "<arg><option>-o=<replaceable>&synopsis-config-string;</replaceable></option></arg>">