sysutils/autorestic: Update to 1.7.10

ChangeLog: https://github.com/cupcakearmy/autorestic/releases/tag/v1.7.10

 * Fix: documentation typos in cron.md
 * delete old docs
 * Update installation.md to add AUR back
 * Add curl to docker image
 * Fix default value of XDG_CONFIG_HOME in config path resolution

PR:		276353
Reported by:	DtxdF@disroot.org (maintainer)