Use level-zero-devel in host, remove level-zero from run sections

[oleksandr-pavlyk]

Level-zero loader is provided by Level-Zero GPU driver (libze1 Debian package). Removing it from conda environment to avoid unintended interaction with system-wide installation.

dpctl relies on DPC++ to find and load level-zero loader.

• Have you provided a meaningful PR description?
• Have you added a test, reproducer or referred to an issue with a reproducer?
• Have you tested your changes locally for CPU and GPU devices?
• Have you made sure that new changes do not introduce compiler warnings?
• Have you checked performance impact of proposed changes?
• If this PR is a work in progress, are you opening the PR as a draft?

[github-actions]

Deleted rendered PR docs from intelpython.github.com/dpctl, latest should be updated shortly. 🤞

[github-actions]

Array API standard conformance tests for dpctl=0.18.0dev0=py310ha798474_309 ran successfully.
Passed: 894
Failed: 1
Skipped: 119

[coveralls]

coverage: 87.9%. remained the same
when pulling 2a493a4 on remove-runtime-dependence-on-level-zero
into 2588eb5 on master.

[github-actions]

Array API standard conformance tests for dpctl=0.18.0dev0=py310hdf72452_372 ran successfully.
Passed: 895
Failed: 0
Skipped: 119

[oleksandr-pavlyk]

Since CI is failing for unrelated reasons, merging.