Use conda-forge channels instead of default everywhere

[oleksandr-pavlyk]

Use it to install conda-build, to install anaconda-client.

conda-forge is free, but use of default channels may require a license.

• [x] 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?
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[github-actions[bot]]

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

[github-actions[bot]]

Array API standard conformance tests for dpctl=0.18.0dev0=py310h15de555_32 ran successfully. Passed: 890 Failed: 11 Skipped: 91

[coveralls]

coverage: 88.057%. remained the same when pulling 5894870f522f449168ad5c91d410a64df2d7ce2d on use-conda-forge-for-anaconda-client into e24e263d684df03fda44f16cf969fd78f0a8fd16 on master.

[github-actions[bot]]

Array API standard conformance tests for dpctl=0.18.0dev0=py310h15de555_33 ran successfully. Passed: 890 Failed: 11 Skipped: 91

[github-actions[bot]]

Array API standard conformance tests for dpctl=0.18.0dev0=py310h15de555_63 ran successfully. Passed: 889 Failed: 12 Skipped: 91

[github-actions[bot]]

Array API standard conformance tests for dpctl=0.18.0dev0=py310h15de555_64 ran successfully. Passed: 890 Failed: 11 Skipped: 91

[oleksandr-pavlyk]

@antonwolfy @ndgrigorian I fixed the crash, please review