fix writing spider cache for Lmod >= 8.7.12

[Flamefire]

(created using eb --new-pr)

https://lmod.readthedocs.io/en/latest/125_personal_spider_cache.html

NOTE: Lmod versions earlier than 8.7.12 wrote the cache file to ~/.lmod.d/.cache

[ocaisa]

Suggested change

	if version >= '8.7.12':
	if version >= StrictVersion('8.7.12'):

Not sure if this is necessary or not, but at least it keeps consistency with how other versions are being treated.

[Flamefire]

No it is not necessary and in fact I changed the self.supports_depends_on to be consistent with this. I prefer this shorter variant when it is clear one operand is already a version instance (which is the case here as it is created right above)

[boegel]

lgtm

[branfosj]

fixes #4262 ?

[boegel]

fixes #4262 ?

Only partially, EasyBuild still only create a moduleT.lua file, which is silently ignored if there's also a spiderT.x86_64_Linux.lua (or *.luac), so more work is needed, but that can be done in a follow-up PR, the changes being made here are definitely a step in the right direction.

[Flamefire]

Together with #4403 and the right configuration locally it should fix that issue