Exit code always 0 when running task inside activated environment

[voodoo11]

Checks

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pixi, using pixi --version.

Reproducible example

[project]
channels = ["conda-forge"]
name = "test"
platforms = ["linux-64"]

[tasks]
fail = "exit 1"

> pixi shell
> pixi run fail
> echo $?
0

Issue description

When running a task inside an activated environment, the exit code is always 0, even if the task fails. Running the same task outside the environment correctly returns the expected exit code.

Pixi version: 0.42.1

Expected behavior

Behavior should be consistent inside and outside the environment. If the task fails, pixi run should return a non-zero exit code.