chore(guide): Update mkdocs.yml w/ copyright year

[BernCarney]

Just updating copyright year to be current year

Pull Request

Purpose

Quick change to update copyright year to be accurate.

Approach

Updated copyright value in mkdocs.yml which should cascade down.

Open Questions and Pre-Merge TODOs

Requirements

• These changes meet the standards for contributing.
• I have read the code of conduct.

[bakerboy448]

please update the PR title per contribution guidelines

[TRaSH-]

Thx I'll take a look at it when I wake up

[owine]

Maybe the JS of <script>document.write(new Date().getFullYear())</script> would be better than the hardcoded date?

https://stackoverflow.com/questions/67983304/how-to-use-build-date-utc-for-copyright-year-in-mkdocs-yml

Dev also suggests using a mkdocs hook: squidfunk/mkdocs-material#4969 (reply in thread)

[BernCarney]

Maybe the JS of <script>document.write(new Date().getFullYear())</script> would be better than the hardcoded date?

https://stackoverflow.com/questions/67983304/how-to-use-build-date-utc-for-copyright-year-in-mkdocs-yml

Dev also suggests using a mkdocs hook: squidfunk/mkdocs-material#4969 (reply in thread)

This could work but you would want a fallback anyways in case the user has javascript disabled. Copyright is one of those weird circumstances where I lean towards hard-coded and have some checks in a linter or pre-commit hook to make sure it matches the current year vs relying on something dynamic.