Define token permissions in "Autoupdate pre-commit" workflow

[antonwolfy]

The PR adds missing permission definition for "Autoupdate pre-commit" workflow which impacts OpenSSF scope.

• 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?

[github-actions]

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

[coveralls]

coverage: 71.779%. first build
when pulling ec2f1f5 on add-token-permissions-to-pre-commit-autoupdate-workflow
into 222b50f on master.

[github-actions]

Array API standard conformance tests for dpnp=0.19.0dev5=py313h509198e_6 ran successfully.
Passed: 1226
Failed: 1
Skipped: 9