sysutils/terragrunt: Update to 0.42.8

ChangeLog: https://github.com/gruntwork-io/terragrunt/releases/tag/v0.42.8

Updated golang.org/x/crypto dependency to fix CVE-2020-9283.

PR: 268966
Reported by: 0xdutra@gmail.com (maintainer)
MFH: 2023Q1 (security fix)
Security: CVE-2020-9283