update fedora base reference

Author: thelamer

README.md

@@ -207,7 +207,7 @@ All base images are built for x86_64 and aarch64 platforms.
 | Debian | debianbookworm |
 | Debian | debiantrixie |
 | Enterprise Linux | el9 |
-| Fedora | fedora42 |
+| Fedora | fedora43 |
 | Kali | kali |
 | Ubuntu | ubuntunoble |
 

readme-vars.yml

@@ -211,7 +211,7 @@ full_custom_readme: |
   | Debian | debianbookworm |
   | Debian | debiantrixie |
   | Enterprise Linux | el9 |
-  | Fedora | fedora42 |
+  | Fedora | fedora43 |
   | Kali | kali |
   | Ubuntu | ubuntunoble |