check: fix a leak in the bus unit test
check: fix a leak in the bus unit test

surround-io/gstreamer,krieger-od/gstreamer,shelsonjava/gstreamer,drothlis/gstreamer,collects/gstreamer,ahmedammar/platform_external_gst_gstreamer,Distrotech/gstreamer,centricular/gstreamer,mparis/gstreamer,lubosz/gstreamer,jpxiong/gstreamer,Distrotech/gstreamer,Distrotech/gstreamer,ylatuya/gstreamer,shelsonjava/gstreamer,collects/gstreamer,krieger-od/gstreamer,collects/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,lovebug356/gstreamer,drothlis/gstreamer,jpxiong/gstreamer,justinjoy/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,cfoch/gstreamer,ylatuya/gstreamer,jpxiong/gstreamer,cablelabs/gstreamer,mparis/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,StreamUtils/gstreamer,Lachann/gstreamer,Lachann/gstreamer,mparis/gstreamer,drothlis/gstreamer,Lachann/gstreamer,shelsonjava/gstreamer,krieger-od/gstreamer,ahmedammar/platform_external_gst_gstreamer,justinjoy/gstreamer,krieger-od/gstreamer,centricular/gstreamer,Lachann/gstreamer,cfoch/gstreamer,cablelabs/gstreamer,shelsonjava/gstreamer,ensonic/gstreamer,Distrotech/gstreamer,krichter722/gstreamer,krichter722/gstreamer,justinjoy/gstreamer,jpakkane/gstreamer,ensonic/gstreamer,krichter722/gstreamer,ahmedammar/platform_external_gst_gstreamer,StreamUtils/gstreamer,ylatuya/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,magcius/gstreamer,lubosz/gstreamer,cfoch/gstreamer,krichter722/gstreamer,cablelabs/gstreamer,shelsonjava/gstreamer,lovebug356/gstreamer,magcius/gstreamer,Distrotech/gstreamer,drothlis/gstreamer,jpxiong/gstreamer,surround-io/gstreamer,StreamUtils/gstreamer,ahmedammar/platform_external_gst_gstreamer,mparis/gstreamer,magcius/gstreamer,cfoch/gstreamer,StreamUtils/gstreamer,magcius/gstreamer,krieger-od/gstreamer,ylatuya/gstreamer,drothlis/gstreamer,lubosz/gstreamer,ylatuya/gstreamer,jpxiong/gstreamer,centricular/gstreamer,jpakkane/gstreamer,Lachann/gstreamer,lubosz/gstreamer,mparis/gstreamer,ensonic/gstreamer,ahmedammar/platform_external_gst_gstreamer,surround-io/gstreamer,ensonic/gstreamer,collects/gstreamer,ensonic/gstreamer,collects/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,centricular/gstreamer,surround-io/gstreamer,surround-io/gstreamer,magcius/gstreamer,StreamUtils/gstreamer,lubosz/gstreamer,centricular/gstreamer,cablelabs/gstreamer,cfoch/gstreamer