Description of problem:
Scribus 'requires' OpenSceneGraph-libs, which requires liblas, which requires a whole slew of packages mostly related to geomatics/math, including proj and proj-data which in turn recommends hundreds of megabytes of proj-data-* packages.

According to the Scribus wiki, OpenSceneGraph is optional, required only for some 3D image formats.
https://wiki.scribus.net/canvas/Building_SVN_versions_with_CMake
https://wiki.scribus.net/canvas/1.5.0_Release

So I think OpenSceneGraph-libs should be a 'recommends' or 'suggests' instead of 'requires'.

Version-Release number of selected component (if applicable):
scribus-1.5.8-6.fc37.x86_64

Steps to Reproduce:
1. Install Scribus (on a system where GIS packages have not been installed).

Actual results:
The install size is a lot bigger than it needs to be.  OpenSceneGraph-libs is required, and lots of proj-data-* packages are recommended (installed by default if using Gnome Software).

Expected results:
OpenSceneGraph-libs should be optional.  (I'm not sure proj-data-* should be recommended but it's probably unavoidable.)

Additional info:
On my system, I think these are the packages that are transitively required by Scribus only because of the OpenSceneGraph-libs dependency (total installed size 166.6MB):

0.1 MB	armadillo
0.7 MB	arpack
0.1 MB	blosc
1.8 MB	cfitsio
11.8 MB	flexiblas-netlib64
0.0 MB	flexiblas-openblas-openmp64
0.1 MB	freexl
25.7 MB	gdal-libs
3.2 MB	geos
0.7 MB	hdf-libs
9.1 MB	hdf5
0.5 MB	laszip
0.1 MB	libaec
0.4 MB	libgeotiff
0.1 MB	libgta
1.3 MB	libkml
1.0 MB	liblas
0.6 MB	liblerc
0.7 MB	libpq
0.4 MB	libqhull_r
0.5 MB	librttopo
16.6 MB	libspatialite
0.2 MB	minizip
2.5 MB	netcdf
0.8 MB	ogdi
39.6 MB	openblas-openmp64
29.2 MB	OpenSceneGraph-libs
4.3 MB	proj
8.5 MB	proj-data
0.2 MB	sdl12-compat
0.5 MB	SuperLU
1.3 MB	unixODBC
0.2 MB	uriparser
3.7 MB	xerces-c