Pin the uid and gid for tor's machine account

(See also: #52 (comment 3247669))

Switching from debian's container image as base image to TPA's image has broken the uid mapping for webtunnel server image Switch from bullseye to bookworm has broken the uid mapping for webtunnel server image, as the uid for system users changed from 101 to 100(debian-tor in this case), this have broken our image's persistence state with permission errors.

This merge request pin the uid and gid of debian-tor so that it will not be influenced by base image's configuration.