Merge pull request #233625 from euank/k3s-23.05

k3s: drop 1.24 & 1.25 for 23.05

nixos/doc/manual/release-notes/rl-2305.section.md

@@ -341,6 +341,8 @@ In addition to numerous new and updated packages, this release has the following
 
 - The `qlandkartegt` and `garmindev` packages were removed due to being unmaintained and insecure.
 
+- Only `k3s` version 1.26 is included. Users of the `k3s_1_24` or `k3s_1_25` packages should upgrade to use the `1.26` version of the package.
+
 - `go-ethereum` package has been updated to v1.11.5 and the `puppeth` command is no longer available as of v1.11.0.
 
 - The `pnpm` package has be updated to from version 7.29.1 to version 8.1.1 and Node.js 14 support has been discontinued (though, there are workarounds if Node.js 14 is still required)