ci: fix quoting for the test_build -include

amends 79321b6707
otherwise, env.ParseFlags never understands it

code/scripts/test_build.py

@@ -59,7 +59,7 @@ def build_configurations(args, configurations):
             [
                 '-DMANUFACTURER=\\"TEST_BUILD\\"',
                 '-DDEVICE=\\"{}\\"'.format(cfg.stem.replace(" ", "_").upper()),
-                '\\"-include {}\\"'.format(cfg.resolve()),
+                '-include "{}"'.format(cfg.resolve().as_posix()),
             ]
         )