Merge pull request #298366 from wegank/obs-gstreamer-platforms

obs-studio-plugins.obs-gstreamer: relax platforms

pkgs/applications/video/obs-studio/plugins/obs-gstreamer.nix

···
     homepage = "https://github.com/fzwoch/obs-gstreamer";
     maintainers = with maintainers; [ ahuzik pedrohlc ];
     license = licenses.gpl2Plus;
-    platforms = [ "x86_64-linux" "i686-linux" ];
+    platforms = platforms.linux;
   };
 }