pidgin/pidgin

Fix a crash on shutdown in kwallet if the wallet was never opened.

The wallet instance variable was not initialized so if the wallet was never opened we were trying to delete and invalid pointer.

Also update the dispose method of the provider to close the wallet as the
tasks in the queue hold a reference to the provider instance as the source
object in their tasks.

Testing Done:
Ran locally with both the kwallet and secret service providers.

Reviewed at https://reviews.imfreedom.org/r/581/
---
version: 1
AppDir:
path: ./AppDir
app_info:
id: im.pidgin.Pidgin3
name: Pidgin3
icon: im.pidgin.Pidgin3
version: !ENV ${VERSION}
exec: usr/bin/pidgin3
apt:
arch: amd64
sources:
- sourceline: 'deb [arch=amd64] http://deb.debian.org/debian/ bullseye main'
key_url: 'https://ftp-master.debian.org/keys/archive-key-10.asc'
include:
- dictionaries-common
- gir1.2-gdkpixbuf-2.0
- gir1.2-gtk-3.0
- gir1.2-soup-2.4
- gstreamer1.0-gl
# - gstreamer1.0-plugins-bad # 100mb-ish only if we really **REALLY** need it
- gstreamer1.0-plugins-good
- gstreamer1.0-x
- libavahi-client3
- libavahi-glib1
- libcanberra0
- libcmark0.29.0
- libfarstream-0.2-5
- libfontconfig1
- libfreetype6
- libgadu3
- libgirepository-1.0-1
- libglib-object-introspection-perl
- libglib-perl
- libgmime-3.0-0
- libgspell-1-2
- libgstreamer-plugins-base1.0-0
- libgstreamer1.0-0
- libgtk-3-0
- libgumbo1
- libidn11
- libidn2-0
- libjson-glib-1.0-0
# - libkf5wallet5 # 57mb
- liblua5.3-0
- libmeanwhile1
- libpython3.8
- libsecret-1-0
- libsoup2.4-1
- libxss1
- lua-lgi
- perl
- python3-gi
exclude:
- adwaita-icon-theme
files:
exclude:
- usr/share/man
- usr/share/doc/*/README.*
- usr/share/doc/*/changelog.*
- usr/share/doc/*/NEWS.*
- usr/share/doc/*/TODO.*
- usr/include
runtime:
path_mappings:
- /usr/lib/x86_64-linux-gnu/gplugin:$APPDIR/usr/lib/x86_64-linux-gnu/gplugin/
- /usr/lib/x86_64-linux-gnu/purple-3:$APPDIR/usr/lib/x86_64-linux-gnu/purple-3/
- /usr/lib/x86_64-linux-gnu/pidgin-3:$APPDIR/usr/lib/x86_64-linux-gnu/pidgin-3/
- /usr/share/pidgin/:$APPDIR/usr/share/pidgin/
- /usr/share/pixmaps/pidgin/:$APPDIR/usr/share/pixmaps/pidgin/
env:
XDG_DATA_DIRS: $APPDIR/share:$XDG_DATA_DIRS
AppImage:
arch: x86_64