MacOS gstreamer: move environment variable LIBRARY_PATH to project

.github/workflows/macos_release.yml

@@ -87,7 +87,6 @@ jobs:
         working-directory: ${{ runner.temp }}/shadow_build_dir
         run:  |
               export JOBS=$((`sysctl -n hw.ncpu`+1))
-              export LIBRARY_PATH=/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/
               qmake -r ${SOURCE_DIR}/qgroundcontrol.pro CONFIG+=installer CONFIG+=${BUILD_TYPE}
               make -j$JOBS
 

src/VideoReceiver/VideoReceiver.pri

@@ -25,6 +25,7 @@ LinuxBuild {
         CONFIG      += VideoEnabled
         INCLUDEPATH += $$GST_ROOT/Headers
         LIBS        += -F/Library/Frameworks -framework GStreamer
+        QMAKE_LIBDIR += $$GST_ROOT/Versions/1.0/lib/
     }
 } else:iOSBuild {
     #- gstreamer framework installed by the gstreamer iOS SDK installer (default to home directory)