Relax torch pin

[sk1p]

The old torch version does not install on Python 3.11. The pin comment says:

LiberTEM/setup.py

Lines 168 to 171 in ade8168

	# NumPy interfacing issue on Win 11, Python 3.10
	# Likely caused by other packages constraining NumPy version to <1.23
	# FIXME recheck later again
	'torch': 'torch<1.12',

Need to verify that the current version works properly and relax the pin.

[uellue]

The installation with current torch version runs with Win 11 and latest LiberTEM on Python 3.11. However, I did not confirm that it is actually using torch. I ran libertem-server and did a disk analysis on a MIB file.