CTestCustom: Suppress clang-analyzer warning in libuv

This is third-party code.

CTestCustom.cmake.in

@@ -101,6 +101,7 @@ list(APPEND CTEST_CUSTOM_WARNING_EXCEPTION
   "libuv/src/.*:[0-9]+:[0-9]+: warning: 1st function call argument is an uninitialized value"
   "libuv/src/.*:[0-9]+:[0-9]+: warning: Dereference of null pointer"
   "libuv/src/.*:[0-9]+:[0-9]+: warning: The left operand of '[^']+' is a garbage value"
+  "libuv/src/.*:[0-9]+:[0-9]+: warning: Value of '[^']+' was not checked and may be overwritten by function '[^']+'"
   "nghttp2/lib/.*:[0-9]+:[0-9]+: warning: Access to field '[^']+' results in a dereference of a null pointer"
   "nghttp2/lib/.*:[0-9]+:[0-9]+: warning: Dereference of null pointer"
   "nghttp2/lib/.*:[0-9]+:[0-9]+: warning: Value stored to '[^']+' is never read"