feat: dont set gid/uid for sysadmin (#265)

- sysadmin doesnt need to be a specific uid/gid, the next available
  uid/gid is fine

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/265

site/profiles/manifests/base/account.pp

@@ -1,8 +1,8 @@
 # a wrapper for puppetlabs-account and saz-sudo
 define profiles::base::account (
   String $username,
-  Integer $uid,
-  Integer $gid = undef,
+  Optional[Integer] $uid = undef,
+  Optional[Integer] $gid = undef,
   Boolean $manage_home = true,
   Boolean $create_group = true,
   Boolean $purge_sshkeys = true,