chore: revert change of gstreamer-plugins

In PR #636 I was over-eager in changing out "-free" packages which had
alternatives in negativo17's fedora-multimedia repo.

Specifically, the gstreamer-plugins provided have a large set of
dependencies which increase the size of the "*-main" images by
approximately 1GiB. Reverting that change as if a user or downstream
wishes it, they can make the change (eg, Bazzite does this I think), but
others should not be burdened with this size change, expecially not as
part of a PR which was just supposed to swap out the source of some
packages.

packages.json

@@ -18,8 +18,6 @@
                 "google-noto-sans-javanese-fonts",
                 "google-noto-sans-sundanese-fonts",
                 "grub2-tools-extra",
-                "gstreamer1-plugins-bad",
-                "gstreamer1-plugins-ugly",
                 "heif-pixbuf-loader",
                 "htop",
                 "intel-vaapi-driver",
@@ -87,9 +85,6 @@
                 "fdk-aac-free",
                 "ffmpeg-free",
                 "google-noto-sans-cjk-vf-fonts",
-                "gstreamer1-plugins-bad-free-libs",
-                "gstreamer1-plugins-bad-free",
-                "gstreamer1-plugins-ugly-free",
                 "libavcodec-free",
                 "libavdevice-free",
                 "libavfilter-free",