Fix render workflow to require Gradle

.gitea/workflows/build-readme.yml

@@ -24,6 +24,11 @@ jobs:
           distribution: temurin
           java-version: "21"
 
+      - name: Set up Gradle
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gradle
+
       - name: Resolve latest Minecraft release
         run: |
           mkdir -p build

build/scripts/render_client_items.py

@@ -4,7 +4,6 @@ from __future__ import annotations
 import argparse
 import os
 import subprocess
-import sys
 from pathlib import Path
 
 
@@ -25,20 +24,7 @@ def main() -> int:
 
     command = ["gradle", "-p", str(client_renderer), "runClient", "--no-daemon"]
 
-    try:
     completed = subprocess.run(command, cwd=repo_root, env=env)
-    except FileNotFoundError:
-        fallback = [
-            sys.executable,
-            str(Path(__file__).resolve().with_name("render_models.py")),
-            "--manifest",
-            str((repo_root / args.manifest).resolve()),
-            "--pack-root",
-            str((repo_root / args.pack_root).resolve()),
-            "--output-dir",
-            str((repo_root / args.output_dir).resolve()),
-        ]
-        completed = subprocess.run(fallback, cwd=repo_root, env=env)
 
     return completed.returncode