Update python_metadata.bzl with new bundle info

This commit updates the backport and integrity values in python_metadata.bzl
based on the latest Pyodide bundle upload.

🤖 Generated automatically by release-python-runtime workflow

Author: actions-user

build/python_metadata.bzl

@@ -100,8 +100,8 @@ BUNDLE_VERSION_INFO = _make_bundle_version_info([
         "pyodide_version": "0.26.0a2",
         "pyodide_date": "2024-03-01",
         "packages": PACKAGES_20240829_4,
-        "backport": "63",
-        "integrity": "sha256-xrG65VJvao9GYH07C73Uq2jA9DW7O1DP16fiZo36Xq0=",
+        "backport": "69",
+        "integrity": "sha256-qTl7xLD5+unEWHX7m6k/UCDr1WywjhjzT9VN4jDjRe4=",
         "flag": "pythonWorkers",
         "enable_flag_name": "python_workers",
         "emscripten_version": "3.1.52",
@@ -132,8 +132,8 @@ BUNDLE_VERSION_INFO = _make_bundle_version_info([
         "pyodide_version": "0.28.0",
         "pyodide_date": "2025-01-16",
         "packages": PACKAGES_20250808,
-        "backport": "2",
-        "integrity": "sha256-vgJw1nTi/1gqPa46J4iOBH3wAE0ziPJd5BjvTHbUI9g=",
+        "backport": "4",
+        "integrity": "sha256-ilVu6m9DEOeye6CEKbXCcBKV7jUsV90laZvTLemNpCg=",
         "flag": "pythonWorkers20250116",
         "enable_flag_name": "python_workers_20250116",
         "emscripten_version": "4.0.9",