Bump shipped c-ares library from 1.33.1 to 1.34.3

https://c-ares.org/changelog.html

configure

@@ -8480,7 +8480,7 @@ fi
 if test "$has_system_cares" = "no"
 then :
 
-cares_version="1.33.1"
+cares_version="1.34.3"
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: extracting c-ares resolver library" >&5
 printf "%s\n" "extracting c-ares resolver library" >&6; }
 cur_dir=`pwd`

configure.ac

@@ -757,7 +757,7 @@ AS_IF([test "x$PRIVATELIBDIR" != "x"], [rm -f "$PRIVATELIBDIR/"libcares*])],[has
 
 AS_IF([test "$has_system_cares" = "no"], [
 dnl REMEMBER TO CHANGE WITH A NEW C-ARES RELEASE!
-cares_version="1.33.1"
+cares_version="1.34.3"
 AC_MSG_RESULT(extracting c-ares resolver library)
 cur_dir=`pwd`
 cd extras