The `CARGO_PASSABLE` flag is not present in the documentation

[IdleSol]

Describe the bug

The CARGO_PASSABLE flag is not present in the documentation.

Attach save file

n/a

Steps to reproduce

n/a

Expected behavior

n/a

Screenshots

No response

Versions and configuration

n/a

Additional context

No response

[TealcOneill]

/Confirm Searched using githubs code search option and found it in use and where it's coded in but not in any of the doc files.