deps: compile c-ares with C11 support

This should get rid of the following GCC warning:
ISO C90 does not support ‘long long’ [-Wlong-long]

PR-URL: #51410
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>

deps/cares/cares.gyp

@@ -181,7 +181,7 @@
         }],
         [ 'OS not in "win android"', {
           'cflags': [
-            '--std=gnu89'
+            '--std=gnu11'
           ],
         }],
         [ 'OS=="linux"', {