Update mkdocs-material-insiders

[jonaharagon]

Changes proposed in this PR:

• Update dependencies

• I have disclosed any relevant conflicts of interest in my post.
• I agree to grant Privacy Guides a perpetual, worldwide, non-exclusive, transferable, royalty-free, irrevocable license with the right to sublicense such rights through multiple tiers of sublicensees, to reproduce, modify, display, perform, relicense, and distribute my contribution as part of this project.
• I am the sole author of this work.
• I agree to the Community Code of Conduct.

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