Update cross-build metadata file for version 0.26.4 (#5204)

Co-authored-by: pyodide-ci-bot <81193237+pyodide-ci-bot@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Agriya Khetarpal <74401230+agriyakhetarpal@users.noreply.github.com>
Co-authored-by: Gyeongjae Choi <def6488@gmail.com>

.github/workflows/update_cross_build_releases.yml

@@ -16,10 +16,13 @@ jobs:
   update_cross_build_releases:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
+      # Note: we check out the main branch so that the cross-build metadata
+      # file is always updated on top of the latest state of the repository.
+      - name: Checkout main branch
         uses: actions/checkout@v4
         with:
           submodules: recursive
+          ref: main
 
       - uses: actions/setup-python@v5
         with:

pyodide-cross-build-environments.json

@@ -8,6 +8,14 @@
       "emscripten_version": "3.1.58",
       "min_pyodide_build_version": "0.26.0"
     },
+    "0.26.4": {
+      "version": "0.26.4",
+      "url": "https://github.com/pyodide/pyodide/releases/download/0.26.4/xbuildenv-0.26.4.tar.bz2",
+      "sha256": "ba0943309768b1f562a98538b4082b8b1a0b9fd77234d0f95a7f06f20a813dee",
+      "python_version": "3.12.1",
+      "emscripten_version": "3.1.58",
+      "min_pyodide_build_version": "0.26.0"
+    },
     "0.26.3": {
       "version": "0.26.3",
       "url": "https://github.com/pyodide/pyodide/releases/download/0.26.3/xbuildenv-0.26.3.tar.bz2",