[libc][obvious] Add the new ctype.h target to the list of x86_64 headers.
This will fix the integration test which is failing currently.
GitOrigin-RevId: 462b3564f1bd103b43ccaa2ddd9211badcf0f68d
diff --git a/config/linux/x86_64/headers.txt b/config/linux/x86_64/headers.txt
index b44681a..550f172 100644
--- a/config/linux/x86_64/headers.txt
+++ b/config/linux/x86_64/headers.txt
@@ -1,5 +1,6 @@
set(TARGET_PUBLIC_HEADERS
libc.include.assert_h
+ libc.include.ctype
libc.include.errno
libc.include.math
libc.include.signal