Bump conda-build version

[antonwolfy]

This PR bumps conda-build version from 25.11.1 to 26.1.0.

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• Have you added your changes to the changelog?

[github-actions]

View rendered docs @ https://intelpython.github.io/dpnp/pull/2753/index.html

[coveralls]

coverage: 81.124%. remained the same
when pulling 300c4a4 on bump-conda-build-version
into 9c4aed2 on master.