chore: spack-v0.22.1

Includes some git CVE fixes, https://github.blog/2024-05-14-securing-git-addressing-5-new-vulnerabilities/, as well as non-package-related fixes to spack itself, full list at https://github.com/spack/spack/releases/tag/v0.22.1 (several affect us, some requested by us).

spack-environment/Makefile

 MAKEFLAGS += -Orecurse
 
-SPACK ?= spack
+SPACK ?= spack --backtrace
 SPACK_INSTALL_FLAGS += --no-check-signature --show-log-on-error
 
 export SPACK_COLOR = always