mindustry: match gradle and package JDK

pkgs/games/mindustry/default.nix

@@ -40,6 +40,8 @@ let
   version = "146";
   buildVersion = makeBuildVersion version;
 
+  gradleWithJdk = gradle.override { java = jdk; };
+
   selectedGlew = if enableWayland then glew-egl else glew;
 
   Mindustry = fetchFromGitHub {
@@ -114,7 +116,7 @@ let
     inherit version unpackPhase patches;
     postPatch = cleanupMindustrySrc;
 
-    nativeBuildInputs = [ gradle perl ];
+    nativeBuildInputs = [ gradleWithJdk perl ];
     # Here we download dependencies for both the server and the client so
     # we only have to specify one hash for 'deps'. Deps can be garbage
     # collected after the build, so this is not really an issue.
@@ -149,7 +151,7 @@ stdenv.mkDerivation rec {
   ];
   nativeBuildInputs = [
     pkg-config
-    gradle
+    gradleWithJdk
     makeWrapper
     jdk
   ] ++ lib.optionals enableClient [