Use 2025-05-23 nightlies with Emscripten 4.0.9

Author: agriyakhetarpal

.github/workflows/ci-emscripten.yml

@@ -15,14 +15,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     env:
-      PYODIDE_VERSION: 0.27.3
-      # PYTHON_VERSION and EMSCRIPTEN_VERSION are determined by PYODIDE_VERSION.
-      # The appropriate versions can be found in the Pyodide repodata.json
-      # "info" field, or in Makefile.envs:
-      # https://github.com/pyodide/pyodide/blob/main/Makefile.envs#L2
-      PYTHON_VERSION: 3.12 # any 3.12.x version works
-      EMSCRIPTEN_VERSION: 3.1.58
-      NODE_VERSION: 20
+      PYODIDE_VERSION: "https://github.com/pyodide/pyodide-build-environment-nightly/releases/download/20250523-emscripten_4.0.9/xbuildenv.tar.bz2"
+      PYTHON_VERSION: 3.13 # any 3.13.x version works
+      EMSCRIPTEN_VERSION: 4.0.9
+      NODE_VERSION: 22
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2