Changing the homedir manually in /etc/passwd causes user resource errors

When changing a user's home directory outside of mgmt, we seem to immediately break the user resource and its handling - it starts producing `usermod` errors. Steps to reproduce: 1. Run the below mcl: ``` user "mgmttest" { state => "exists", } ``` 2. in /etc/passwd edit the home dir to be mgmttest1 3. Run mgmt, see the error Even setting the home dir back to mgmttest still causes the error. Reproduced with latest main branch build of mgmt, on Ubuntu 24.04 (`shadow-utils 4.13`, which provide usermod erroring below) Error: ``` 17:21:42 engine: user[mgmttest]: Error: error during Process(): usermod: no options Usage: usermod [options] LOGIN Options: -a, --append append the user to the supplemental GROUPS mentioned by the -G option without removing the user from other groups -b, --badname allow bad names -c, --comment COMMENT new value of the GECOS field -d, --home HOME_DIR new home directory for the user account -e, --expiredate EXPIRE_DATE set account expiration date to EXPIRE_DATE -f, --inactive INACTIVE set password inactive after expiration to INACTIVE -g, --gid GROUP force use GROUP as new primary group -G, --groups GROUPS new list of supplementary GROUPS -h, --help display this help message and exit -l, --login NEW_LOGIN new value of the login name -L, --lock lock the user account -m, --move-home move contents of the home directory to the new location (use only with -d) -o, --non-unique allow using duplicate (non-unique) UID -p, --password PASSWORD use encrypted password for the new password -P, --prefix PREFIX_DIR prefix directory where are located the /etc/* files -r, --remove remove the user from only the supplemental GROUPS mentioned by the -G option without removing the user from other groups -R, --root CHROOT_DIR directory to chroot into -s, --shell SHELL new login shell for the user account -u, --uid UID new UID for the user account -U, --unlock unlock the user account -v, --add-subuids FIRST-LAST add range of subordinate uids -V, --del-subuids FIRST-LAST remove range of subordinate uids -w, --add-subgids FIRST-LAST add range of subordinate gids -W, --del-subgids FIRST-LAST remove range of subordinate gids -Z, --selinux-user SEUSER new SELinux user mapping for the user account : exit status 2 ```