Deprecate `runas` usage on `salt.states.postgres_group`. Refs #6961.
Deprecate `runas` usage on `salt.states.postgres_database`. Refs #6961.
Deprecate `runas` usage on `salt.states.npm`. Refs #6961.
Deprecate `runas` usage on `salt.states.hg`. Refs #6961.
Deprecate `runas` usage on `salt.states.git`. Refs #6961.
Deprecate `runas` usage on `salt.states.gem`. Refs #6961.