Backport SCons environment variable import option

Origin: backport: https://github.com/godotengine/godot/commit/ed52ac9b5df5bae8836b309f1d55f928ebc58481
Forwarded: non-needed
Applied-Upstream: 4.3

Gbp-Pq: Name Backport-SCons-environment-variable-import-option.patch

godot (3.6+ds-2) unstable; urgency=medium

  [ Travis Wrightsman ]
  * Allow autopkgtest to fail on some architectures
  * Remove after_script workarounds after upstream fix

[dgit import unpatched godot 3.6+ds-2]

Import godot_3.6+ds-2.debian.tar.xz

[dgit import tarball godot 3.6+ds-2 godot_3.6+ds-2.debian.tar.xz]

Import godot_3.6+ds.orig.tar.xz

[dgit import orig godot_3.6+ds.orig.tar.xz]