nixos/whale2: Refresh Valheim server and world

Pin the community image and start simpland3 while retaining
simpland2. Correct the server-files volume name and reuse the
admin ID in both access lists.

docs/sites/colony/whale2.md

@@ -48,7 +48,8 @@ forwarded by `estuary`.
 | `graeme` | `25569` tcp+udp | running |
 
 - **valheim** ([`valheim.nix`](../../../nixos/boxes/colony/vms/whale2/valheim.nix)) —
-  `lloesche/valheim-server`, public server "amogus sus", world `simpland2`,
+  `community-valheim-tools/valheim-server`, public server "amogus sus", world `simpland3`
+  (previous world `simpland2` retained in the `valheim_data` volume),
   allow-listed Steam IDs, password from agenix.
 - **simpcraft** ([`minecraft/`](../../../nixos/boxes/colony/vms/whale2/minecraft)) —
   `itzg/minecraft-server` (self-built `git.nul.ie/dev/craftblock` image),

nixos/boxes/colony/vms/whale2/valheim.nix

@@ -2,21 +2,24 @@
 let
   inherit (lib) concatStringsSep;
   inherit (lib.my) dockerNetAssignment;
+
+  admin = "76561198049818986"; # /dev/player0
 in
 {
   config = {
     virtualisation.oci-containers.containers = {
       valheim = {
-        image = "ghcr.io/lloesche/valheim-server@sha256:d977ccbeff02d2509646fb0157b5e353ebadb3105a3ed351b9c309a09a61701b";
+        image = "ghcr.io/community-valheim-tools/valheim-server@sha256:f3ccde9a4e292663cf5096d502ff33cc9617015f6d70b6a9ca0968543f165ef2";
 
         environment = {
           BACKUPS_IF_IDLE = "false";
           SERVER_NAME = "amogus sus";
           SERVER_PUBLIC = "true";
-          WORLD_NAME = "simpland2";
-          ADMINLIST_IDS = "76561198049818986";
+          # Previous world: simpland2
+          WORLD_NAME = "simpland3";
+          ADMINLIST_IDS = admin;
           PERMITTEDLIST_IDS = concatStringsSep " " [
-            "76561198049818986" # /dev/player0
+            admin
             "76561198044432445" # Nuda
             "76561198121606266" # El Pugador
             "76561198059894566" # hynge
@@ -27,7 +30,7 @@ in
 
         volumes = [
           "valheim_data:/config"
-          "valhem_server:/opt/valheim"
+          "valheim_server:/opt/valheim"
         ];
 
         extraOptions = [