help-beta: Convert build-help-center to a Python script.

We need to fetch some values from settings in the future and use it in
the build process, we need our script to be in Python for that.

tools/build-help-center

@@ -1,4 +1,28 @@
-#!/usr/bin/env bash
+#!/usr/bin/env python3
 
-./tools/convert-help-center-docs-to-mdx
-(cd ./help-beta/ && /usr/local/bin/corepack pnpm build)
+import os
+import subprocess
+import sys
+
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+from scripts.lib.setup_path import setup_path
+
+setup_path()
+
+os.environ["DJANGO_SETTINGS_MODULE"] = "zproject.settings"
+
+import django
+
+django.setup()
+
+
+def run() -> None:
+    subprocess.check_call(["./tools/convert-help-center-docs-to-mdx"], stderr=subprocess.STDOUT)
+    subprocess.check_call(
+        ["/usr/local/bin/corepack", "pnpm", "build"], stderr=subprocess.STDOUT, cwd="help-beta"
+    )
+
+
+run()