deps: c-ares: cherry-pick 8ba37af8e3fb

Original commit message:
Fixes#1056
The commit
c-ares/c-ares@1d1b3d4
refactored the function to use wide strings, but didn't touch this
check. Because an empty wide string would now be size 2 and not 1, the
empty string would go on and cause the DNS domain list to be replaced
with nothing.
Signed-off-by: @dankmeme01
Refs: c-ares/c-ares@8ba37af
PR-URL: #64110Fixes: #62347
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tim Perry <pimterry@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: Renegade334

deps/cares/src/lib/ares_sysconfig_win.c

@@ -106,7 +106,7 @@ static ares_bool_t get_REG_SZ(HKEY hKey, const WCHAR *leafKeyName, char **outptr
 
 /* Get the value for real */
 res=RegQueryValueExW(hKey, leafKeyName, 0, NULL, (BYTE*)val, &size);
-if (res!=ERROR_SUCCESS||size==1) {
+if (res!=ERROR_SUCCESS||size==sizeof(WCHAR)) {
 ares_free(val);
 returnARES_FALSE;
  }