opensuse: build qtmultimedia

some gstreamer plugins were missing causing jami-qt to not launch

Change-Id: Ib3b07344f6a9fc8b766541bb4e30143abc3df5b1

docker/Dockerfile_opensuse-leap_15.3

@@ -91,6 +91,10 @@ RUN zypper --non-interactive install -y \
         xorg-* \
         vulkan-devel \
         ninja \
+        gstreamer-devel \
+        gstreamer-plugins-good \
+        gstreamer-plugins-bad-devel \
+        gstreamer-plugins-base-devel \
         wget
 
 RUN update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 50

packaging/rules/rpm/jami-libqt.spec

 %define name        jami-libqt
 %define version     RELEASE_VERSION
-%define release     4
+%define release     5
 
 # qtwebengine (aka chromium) takes a ton of memory per build process,
 # up to 2.3 GiB.  Cap the number of jobs based on the amount of

scripts/build-package-rpm.sh

@@ -46,7 +46,7 @@ CMAKE_PREFIX_PATH="${QT_JAMI_PREFIX}/lib/cmake:${CMAKE_PREFIX_PATH}"
 QT_MAJOR=6
 QT_MINOR=2
 QT_PATCH=3
-QT_RELEASE_PATCH=4
+QT_RELEASE_PATCH=5
 
 QT_MAJOR_MINOR=${QT_MAJOR}.${QT_MINOR}
 QT_MAJOR_MINOR_PATCH=${QT_MAJOR}.${QT_MINOR}.${QT_PATCH}