Conflict between pyirf.gammapy (gammapy 1.3) and matplotlib 3.10

[antonioiuliano2]

Dear all,

with a clean installation from the main branch, I get this error:

import pyirf.gammapy

import pyirf.gammapy
Traceback (most recent call last):
File "", line 1, in
File "/home/utente/Lavoro/CTA/pyirf/pyirf/gammapy.py", line 6, in
from gammapy.irf import EffectiveAreaTable2D, PSF3D, EnergyDispersion2D
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/gammapy/irf/init.py", line 4, in
from .background import Background2D, Background3D, BackgroundIRF
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/gammapy/irf/background.py", line 9, in
from gammapy.maps import MapAxes, MapAxis
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/gammapy/maps/init.py", line 10, in
from .region import RegionGeom, RegionNDMap
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/gammapy/maps/region/init.py", line 2, in
from .geom import RegionGeom
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/gammapy/maps/region/geom.py", line 11, in
from astropy.visualization.wcsaxes import WCSAxes
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/astropy/visualization/wcsaxes/init.py", line 19, in
from .helpers import *
File "/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/astropy/visualization/wcsaxes/helpers.py", line 8, in
from mpl_toolkits.axes_grid1.anchored_artists import AnchoredEllipse, AnchoredSizeBar
ImportError: cannot import name 'AnchoredEllipse' from 'mpl_toolkits.axes_grid1.anchored_artists' (/home/utente/miniforge3/envs/pyirf/lib/python3.11/site-packages/mpl_toolkits/axes_grid1/anchored_artists.py)

I believe it to be related to this gammapy post about matplotlib 3.10:
gammapy/gammapy#5659

Should the environment.yml file require gammapy<3.10 until this issue is solved on the gammapy side?

Best Regards,
Antonio