feat: add pyodide 0.28 and pyodide-prerelease (#2431)

* Add pyodide 0.28.0a3

* Add docs and tests for 0.28
This reverts commit 2e7d716a9ecfbdac159eed798ebf1b0170e6858d.

* fix: add selector for pyodide-prerelease, and add graalpy to schema

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>

test/utils.py

@@ -261,6 +261,8 @@ def _expected_wheels(
 
     if platform == "pyodide" and python_abi_tags is None:
         python_abi_tags = ["cp312-cp312"]
+        if EnableGroup.PyodidePrerelease in enable_groups:
+            python_abi_tags.append("cp313-cp313")
     elif platform == "ios" and python_abi_tags is None:
         python_abi_tags = ["cp313-cp313"]
     elif python_abi_tags is None: