pjproject: add patches from asterisk's bundled pjproject

pjproject: add patches from asterisk's bundled pjproject

"check whether UPDATE is supported on outgoing calls", commit 5de36abd:

In ASTERISK-27095 an issue had been fixed because of which chan_pjsip was not
trying to send UPDATE messages when connected_line_method was set to invite.
However this only solved the issue for incoming INVITES. For outgoing INVITES
(important when transferring calls) the options variable needs to be updated
at a different place.

"Add patch for double free issue in timer heap", commit 9c11399b:

Fixed #2172: Avoid double reference counter decrements in
timer in the scenario of race condition between
pj_timer_heap_cancel() and pj_timer_heap_poll().

"Add timer patch from pjproject r5934", commit d4cd2a97.

Signed-off-by: Andre Heider <a.heider@gmail.com>