Update mattlord's company affiliation in project-maintainers.csv

[mattlord]

This change has already been reflected in the project repo here: vitessio/vitess#17961

Note

@notfelineit asked that I also update her affiliation as you can see here: #1057 (comment)

Pre-submission checklist for maintainer updates (delete this if you're updating a different file)

If you're adding a new maintainer to the CSV file, please review each of these actions as well:

• The maintainer has also created or updated their LFX Individual Dashboard profile.
• You've also sent an email with the addresses to [email protected] for access to Service Desk and mailing lists.
• Optional: You've also sent a PR with affiliation updates to cncf/gitdm.

[deepthi]

Also relevant: vitessio/vitess#18394

[krook]

Thanks @mattlord. @notfelineit I've invited your personal address to Service Desk and the maintainer mailing list.