math/parmetis: Deprecate and set expiration date to 2025-02-28

• Broken for months (unfetchable)
• Unmaintained for years
• Upstream is unresponsive [1]

References:
1: https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=parmetis

Reported by: pkg-fallout