[MAINT] Add additional pre-commit hooks

[ndgrigorian]

This PR adds additional pre-commit hooks, such as codespell and shellcheck, and updates files to conform to linters

• 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]

View rendered docs @ https://intelpython.github.io/dpctl/pulls/2285/index.html

[coveralls]

coverage: 77.341%. remained the same — maint/add-more-pre-commit-hooks into master