fix unrelated test

Author: memsharded

test/functional/toolchains/cmake/test_cmake_toolchain_win_clang.py

@@ -155,7 +155,7 @@ def test_clang_visual_studio_generator(self, client):
         assert 'cmake -G "{}"'.format(generator) in client.out
         assert "MSVC-like command-line" in client.out
         # My local is 17, but CI ClangCL still 16
-        assert "main __clang_major__18" in client.out
+        assert "main __clang_major__17" in client.out
         # Check this! Clang compiler in Windows is reporting MSC_VER and MSVC_LANG!
         assert "main _MSC_VER1938" in client.out
         assert "main _MSVC_LANG201703" in client.out