package/mosquitto: security bump to v2.0.10

package/mosquitto: security bump to v2.0.10

Versions 2.0.10 of Mosquitto has been released. This is a security and bugfix release.

CVE-xxxx-xxxx: If an authenticated client connected with MQTT v5 sent a malformed
CONNACK message to the broker a NULL pointer dereference occurred, most likely
resulting in a segfault. This will be updated with the CVE number when it is assigned.
Affects versions 2.0.0 to 2.0.9 inclusive.

See the announcement: https://mosquitto.org/blog/2021/04/version-2-0-10-released/

Signed-off-by: Titouan Christophe <titouanchristophe@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>