[roll] Roll fuchsia [superproject] Roll llvm-project/libc [libc] Use __attribute__((__noreturn__)) for _Noreturn in C < 11 (#121252)

When in modes like C99, the _Noreturn keyword is not available in
C.  But GNU-compatible compilers have a `noreturn` attribute with
the same effect on function declarations.

GitOrigin-RevId: 40b8c6a2b3e26de4ace25f3aa62d24a77c0fe576
Original-Revision: 25f09ea8bc0fb04997fb09c42f4f9bee2ff08ea5
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1182360
Original-Revision: 2f8e3b1108e8ab8a28e0854409589d9dfc2f711b
Change-Id: I43d27218f9b039d40413f3a5406ef2c195e66722

Author: global-integration-roller

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="089375d32b1be7c6d9d8324b8973c036b81de583"/>
+             revision="2f8e3b1108e8ab8a28e0854409589d9dfc2f711b"/>
   </projects>
   <hooks>
     <hook name="install-environment"