[MAINT] Do not use conda-build 25.1.2 to fix Conda package workflow

[ndgrigorian]

Conda workflow has been failing due to issues with LIEF, which jumped to 0.16.1 in CI. Bring conda-build version down to 25.1.1 while waiting for stability to improve.

• 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?
• Have you added documentation for your changes, if necessary?
• Have you added your changes to the changelog?
• 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=0.19.0dev0=py310h93fe807_525 ran successfully.
Passed: 894
Failed: 2
Skipped: 118

[coveralls]

coverage: 88.224%. remained the same
when pulling 83c6dc8 on pin-conda-build-25-1-1
into 61af21b on master.