Remove the platform file for Ubuntu 20.04.

Author: SadieCat

.github/workflows/build-packages.yml

@@ -31,8 +31,6 @@ jobs:
             platform: debian-12
           - package: deb
             platform: debian-13
-          - package: deb
-            platform: ubuntu-20-04
           - package: deb
             platform: ubuntu-22-04
           - package: deb

README.md

@@ -5,7 +5,7 @@
 This repository contains scripts for building InspIRCd packages. Currently, it has support for:
 
 * deb on Debian 12 and 13
-* deb on Ubuntu 20.04 and 22.04
+* deb on Ubuntu 22.04 and 24.04
 * RPM on Rocky Linux 8 and 9
 
 Support for packaging systems and platforms is planned. See the [open issues](https://github.com/inspircd/inspircd-packages/issues/3) for details.