gnu: qtmultimedia-5: Update to 5.15.8.

* gnu/packages/qt.scm (qtmultimedia-5): Update to 5.15.8.

gnu: qtsensors: Update to 5.15.8.

* gnu/packages/qt.scm (qtsensors): Update to 5.15.8.

gnu: qtwebsockets-5: Update to 5.15.8.

* gnu/packages/qt.scm (qtwebsockets-5): Update to 5.15.8.

gnu: qtconnectivity: Update to 5.15.8.

* gnu/packages/qt.scm (qtconnectivity): Update to 5.15.8.

gnu: qtdeclarative-5: Update to 5.15.8.

* gnu/packages/qt.scm (qtdeclarative-5): Update to 5.15.8.
[arguments]: Use gexps.  Address TODO.

gnu: qtxmlpatterns: Update to 5.15.8.

* gnu/packages/qt.scm (qtxmlpatterns): Update to 5.15.8.

gnu: qtx11extras: Update to 5.15.8.

* gnu/packages/qt.scm (qtx11extras): Update to 5.15.8.

gnu: qtimageformats: Update to 5.15.8.

* gnu/packages/qt.scm (qtimageformats): Update to 5.15.8.

gnu: qtsvg-5: Update to 5.15.8.

* gnu/packages/qt.scm (qtsvg-5): Update to 5.15.8.

gnu: qt3d-5: Update to 5.15.8.

* gnu/packages/qt.scm (qt3d-5): Update to 5.15.8.

gnu: qtbase-5: Update to 5.15.8.

* gnu/packages/qt.scm (qtbase-5): Update to 5.15.8.
[inputs]: Remove labels.

build: qt-utils: Revert setting QT_PLUGIN_PATH exactly.

Fixes <https://issues.guix.gnu.org/57742>.

The documentation of Qt states that it is a supported use case to mix Qt 5 and
Qt 6 plugins in QT_PLUGIN_PATH [0].  This reverts the change to QT_PLUGIN_PATH
introduced in 1f466ed6be9 ("build: qt: Add qtbase argument and wrap Qt
environment variables exactly.").

[0]  https://doc.qt.io/qt-6.2/deployment-plugins.html#loading-and-verifying-plugins-dynamically

* guix/build/qt-utils.scm (variables-for-wrapping): Wrap QT_PLUGIN_PATH using
the prefix method.

gnu: Remove libcanberra/gtk+-2.

* gnu/packages/libcanberra.scm (libcanberra/gtk+-2): Delete variable.

gnu: jami-docs: Update to 0.0.0-1.ff466eb.

* gnu/packages/jami.scm (jami-docs): Update to 0.0.0-1.ff466eb.

gnu: jami: Update to 20230323.0.

* gnu/packages/jami.scm (jami): Update to 20230323.0.
(%ffmpeg-default-configure-flags): Update flags.
(pjproject-jami): Update commit.
(ffmpeg-jami) [version, source, outputs]: : Delete fields.
[arguments]: Delete disable-problematic-tests phase.
* gnu/packages/patches/jami-libjami-headers-search.patch: Rebase patch.

gnu: pjproject: Update to 2.13.

* gnu/packages/telephony.scm (pjproject): Update to 2.13.
[arguments]: Disable the resolver-related tests.

gnu: ffmpeg: Add a debug output.

* gnu/packages/video.scm (ffmpeg) [outputs]: New field.
[arguments]: Add --disable-stripping to configure flags.

gnu: ffmpeg: Update to 6.0.

* gnu/packages/video.scm (ffmpeg): Update to 6.0.
(ffmpeg-5): New variable.
* gnu/packages/gnuzilla.scm (icecat-minimal) [inputs]: Replace ffmpeg with
ffmpeg-5.
* gnu/packages/gnuzilla.scm (icedove-minimal): Likewise.

gnu: ffmpeg-5: Rename variable to ffmpeg.

* gnu/packages/video.scm (ffmpeg-5): Rename to...
(ffmpeg): ... this, replacing the old 'ffmpeg' alias.
(ffmpeg-4): Adjust accordingly.
* gnu/packages/jami.scm (ffmpeg-jami): Likewise.

gnu: webkitgtk: Update to 2.40.0.

The version is re-integrated with the package to allow 'guix refresh -l' to
work.

* gnu/packages/patches/webkitgtk-libelogind.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/webkit.scm (%webkit-version): Delete variable.
(webkitgtk): Update to 2.40.0.  Apply new patch.
[arguments]: Add a CMAKE_CXX_FLAGS configure flag.  Delete
help-cmake-find-elogind phase.
[native-inputs]: Add unifdef.
[inputs]: Remove gtk+-2.  Add libavif.
(wpewebkit): Update to 2.40.0.
(webkitgtk-next) [inputs]: Remove now extraneous gtk+-2 deletion.