[develop2] Fix MesonToolchain wrong cppstd in apple-clang (#13172)

Author: memsharded

conans/test/unittests/model/version/test_version_range.py

@@ -52,7 +52,8 @@ def test_range(version_range, conditions, versions_in, versions_out):
     for v in versions_out:
         assert Version(v) not in r
 
+
 def test_wrong_range_syntax():
     # https://github.com/conan-io/conan/issues/12692
-    with pytest.raises(ConanException) as e:
+    with pytest.raises(ConanException):
         VersionRange(">= 1.0")