Update footer.gohtml

[eugenestarchenko]

This PR fixes #

• copyright year

Checklist

• [x] I have signed the CLA
• [x] I have updated/added any relevant documentation

Description

What's the goal of this PR?

• prevent confusion from thinking the product is outdated

What changes did you make?

What alternative solution should we consider, if any?

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

:white_check_mark: sudermanjr
:x: eugenestarchenko
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[sudermanjr]

Thanks! I recently learned how this is the accurate approach, so I appreciate the update.

If you could sign the CLA, we'll get this merged in. Thanks!

[sudermanjr]

Closing for now. Please feel free to re-open if you get the CLA signed and re-base. Thanks!