Allow overriding `VERSION_STATUS` with `GODOT_VERSION_STATUS` in env
Allow overriding `VERSION_STATUS` with `GODOT_VERSION_STATUS` in env

`VERSION_STATUS` is part of what constitutes the reference version for a given
Godot build, and is part of the version check for compatible export templates.

For dev snapshots (alpha, beta, RCs), we usually set the `VERSION_STATUS` to
a specific build number (e.g. `beta2`), but this change doesn't end up
committed to the Git repository as we don't want to keep changing `version.py`
for testing builds.

So this new environment override will be what can be used in official builds
and by users making custom builds for specific snapshots.

(cherry picked from commit 948dcb63ca4f31f12d936761cdc177a730a196fc)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot