libpurple, finch, pidgin: update to 2.14.10

This notably fixes security issues (CVE-2012-1257, CVE-2022-26491).

Tested on NetBSD/amd64.

XXX pull-up to the pkgsrc-2022Q2 branch

The complete changelog for the new versions is reproduced here:

version 2.14.10 (06/02/2022):
General:
* Audit and correct the COPYRIGHT file. (RR 1425) (Richard Laager)
* Fix a spelling error in a debug message for proxies. (RR 1426) (Richard
  Laager)
* Install some emojis already in the theme but not being installed.
  (RR 1428) (Richard Laager)
* Drop the QQ smileys as we don't ship QQ anymore. (PIDGIN-14385) (RR 1429)
  (Richard Laager)
* Modernize the desktop file. (RR 1433) (Richard Laager)
* Modernize the appdata file. (RR 1431) (Richard Laager)
* Make privacy settings persist. (PIDGIN-17137) (RR 1463) (Belgin ��tirbu)

Pidgin:
* Fix a use after free that was introduced in 2.14.9. (RR 1488) (ivanhoe)

IRC:
* Fix a crash if the server sends a short form JOIN message. (PIDGIN-17375)
  (RR 1484) (Belgin ��tirbu)

XMPP:
* Fix a regression from 2.14.9 where XMPP accounts state would get lost
  after failing to connect. (PIDGIN-17621) (RR 1455) (Belgin ��tirbu)
* Fix a crash when requesting your own info in an XMPP conference. (RR 1465)
  (Belgin ��tirbu)
* Fix hang when completing a file transfer over XMPP. (RR 1466) (Belgin
  ��tirbu)
* Fix updating custom smileys. (PIDGIN-17153) (RR 1477) (Belgin ��tirbu)
* Fix unblocking users. (PIDGIN-16414) (RR 1479) (Belgin ��tirbu)
* Fix a crash when cancelling a file transfer. (PIDGIN-17189) (RR 1485)
  (Belgin ��tirbu)

version 2.14.9 (04/28/2022):
Security:
* Remove _xmppconnect support. (RR 1357) (CVE-2022-26491) (Gary Kramlich)

libpurple:
* Fix a GLib CRITICAL message with typing time outs. (RR 1123) (Mohammed
  Sadiq)
* Fix an issue where the unit tests for purple_str_to_time would fail.
  (GENTOO-819774) (RR 1238) (Gary Kramlich)

Pidgin:
* Fix a memory leak in pidgin_conversations_set_tab_colors. (RR 1244)
  (ivanhoe)
* Fixed the majority of the infinite resizing issues in the input box.
  (PIDGIN-16753, PIDGIN-16999, PIDGIN-17287, PIDGIN-17413, PIDGIN-17430,
  PIDGIN-17568, PIDGIN-17602) (RR 1342) (Belgin ��tirbu)
* Add transient-buddy back which is used to show some context menus and
  other things. (PIDGIN-17523) (RR 1381) (Belgin ��tirbu)

Windows:
* Fix the download of dictionaries in the Windows installer. (PIDGIN-14618,
  PIDGIN-15648, PIDGIN-15540, PIDGIN-14612, PIDGIN-14893) (RR 1303) (Gary
  Kramlich)

Translations:
* Fix a typo in the German translations. (PIDGIN-17575) (RR 1242) (ivanhoe)
* Synced all of the translations with Transifex.

IRC:
* Fix IRC file transfers on Windows. (PIDGIN-17175) (RR 1382) (Belgin
  ��tirbu)
* Fix file transfers failing at 99% on IRC. (PIDGIN-15893) (RR 1385) (Belgin
  ��tirbu)
* Default realname and ident name in IRC to the username (nickname) of the
  account. (PIDGIN-17610) (RR 1386) (Belgin ��tirbu)
* Add an advanced account option to IRC accounts for explicitly setting the
  SASL login name. (PIDGIN-15451) (RR 1388) (Belgin ��tirbu)
* Added a rate limiter that should make it impossible to excess flood.
  (RR 1391) (Gary Kramlich)

SIMPLE:
* Fix an issue with the CSeq numbers in SIMPLE. (PIDGIN-9675) (RR 1379)
  (dohmniq)

XMPP:
* Fix XMPP attention messages being sent to incorrect JIDs. (PIDGIN-14714)
  (RR 1387) (itsnotabigtruck, Belgin ��tirbu)

(khorben)