Fix grapplers not being able to pull you

[Venera3]

Summary

None

Purpose of change

While unhardcoding ranged pulls I accidentally broke all grappling-line zombies slightly.

Describe the solution

Expand evolved pullers' pullable weight limits.

Describe alternatives you've considered

Turning them chonky and upping their pullable range like that, but purpose-build zombie flesh should be able to yoink with the force of a thousand dead universes.
Also would have had size-category knock-on effects I wasn't in the mood to track down.

Testing

Per the original report I tried getting pulled off a roof by a grappler and saw it fail. Retried with debug mode, saw that it failed to pull me because of my weight (rude).
Applied the changes, got pulled down a roof, broke the spine of my poor testing bird mutant. 10/10 would playtest again.

Additional context