`SNAPCRAFT_BUILD_ENVIRONMENT` takes priority over `--use-lxd`
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Current evaluation
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Issue body
### Bug Description
`CRAFT_MANAGED_MODE` and `SNAPCRAFT_BUILD_ENVIRONMENT` take priority over `--use-lxd`
See https://github.com/canonical/craft-application/issues/354
### To Reproduce
```shell
SNAPCRAFT_BUILD_ENVIRONMENT=host snapcraft pack --use-lxd
CRAFT_MANAGED_MODE=1 snapcraft pack --use-lxd
```
### Environment
n/a
### snapcraft.yaml
```shell
n/a
```
### Relevant log output
```shell
n/a
```
### Additional context
_No response_
Evaluation history
No evaluation history available.