bird3: 3.0.2 -> 3.1.1 (#407612)

Changelog: https://gitlab.nic.cz/labs/bird/-/blob/v3.1.1/NEWS

This reverts the downgrade to the 3.0.x track (#404140) because the
missing patches which lead to the revert have been applied
according to the Changelog.

pkgs/by-name/bi/bird3/package.nix

···
 
 stdenv.mkDerivation rec {
   pname = "bird";
-  version = "3.0.2";
+  version = "3.1.1";
 
   src = fetchurl {
-    url = "https://bird.network.cz/download/bird-${version}.tar.gz";
-    hash = "sha256-eKqL5820LfFLnilpu2Q7IoxoBMZXj5CTsXPOiiQ3zDA=";
+    url = "https://bird.nic.cz/download/bird-${version}.tar.gz";
+    hash = "sha256-KXJRl0/4g+TvA/zNbJEtEW7Un/Lxxjtm0dul8HCUREo=";
   };
 
   nativeBuildInputs = [
···
   meta = with lib; {
     changelog = "https://gitlab.nic.cz/labs/bird/-/blob/v${version}/NEWS";
     description = "BIRD Internet Routing Daemon";
-    homepage = "https://bird.network.cz";
+    homepage = "https://bird.nic.cz/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ herbetom ];
     platforms = platforms.linux;