plantuml-server: migrate to pkgs/by-name, format with nixfmt-rfc-style

pkgs/by-name/pl/plantuml-server/package.nix

@@ -1,18 +1,22 @@
-{ lib, stdenv, fetchurl, nixosTests }:
+{
+  lib,
+  stdenv,
+  fetchurl,
+  nixosTests,
+}:
 
-let
-  version = "1.2024.7";
-in
 stdenv.mkDerivation rec {
   pname = "plantuml-server";
-  inherit version;
+  version = "1.2024.7";
+
   src = fetchurl {
     url = "https://github.com/plantuml/plantuml-server/releases/download/v${version}/plantuml-v${version}.war";
-    sha256 = "sha256-9YTclV+FoiNbcpeNtlbbozqjB1BN9EJn03CzyHDbC+8=";
+    hash = "sha256-9YTclV+FoiNbcpeNtlbbozqjB1BN9EJn03CzyHDbC+8=";
   };
 
   dontUnpack = true;
-  installPhase = ''
+
+  postInstall = ''
     mkdir -p "$out/webapps"
     cp "$src" "$out/webapps/plantuml.war"
   '';

pkgs/top-level/all-packages.nix

@@ -11319,8 +11319,6 @@ with pkgs;
 
   pk2cmd = callPackage ../tools/misc/pk2cmd { };
 
-  plantuml-server = callPackage ../tools/misc/plantuml-server { };
-
   plan9port = darwin.apple_sdk_11_0.callPackage ../tools/system/plan9port {
     inherit (darwin.apple_sdk_11_0.frameworks) Carbon Cocoa IOKit Metal QuartzCore;
     inherit (darwin) DarwinTools;