Restore runs-on: windows-latest (#5835)

* Revert "s/windows-2022/windows-latest/ in .github/workflows/{ci,pip}.yml (#5826)"

This reverts commit 852a4b5010.

* Add module-level skip for Windows build >= 26100 in test_iostream.py

* Changes suggested by at-henryiii

tests/test_iostream.py

@@ -6,8 +6,19 @@ from io import StringIO
 
 import pytest
 
+import env
 from pybind11_tests import iostream as m
 
+if env.WIN:
+    wv_build = sys.getwindowsversion().build
+    skip_if_ge = 26100
+    if wv_build >= skip_if_ge:
+        pytest.skip(
+            f"Windows build {wv_build} >= {skip_if_ge}:"
+            " Skipping iostream capture (redirection regression needs investigation)",
+            allow_module_level=True,
+        )
+
 
 def test_captured(capsys):
     msg = "I've been redirected to Python, I hope!"