Don't build free-threaded wheels with cibuildwheel

pyproject.toml

@@ -57,14 +57,15 @@ package = "flint"
 [tool.cibuildwheel]
 # requires-python needs to keep in sync with this and also the list of Python
 # versions the wheels are tested against in CI.
-build = "cp39-* cp310-* cp311-* cp312-* cp313-* cp313t-*"
+build = "cp39-* cp310-* cp311-* cp312-* cp313-*"
 skip = "*-win32 *-manylinux_i686 *-musllinux_*"
 
-free-threaded-support = true
+# This is needed for free-threaded wheels:
+# build = "cp313t-*"
+# free-threaded-support = true
 
 manylinux-x86_64-image = "manylinux2014"
 manylinux-i686-image = "manylinux2014"
-
 test-command = "python -c \"import flint; print(str(flint.fmpz(2)))\""
 
 [tool.cibuildwheel.linux.environment]