Add Personal Growth Day to the UX CI/CD Team Page

Why is this change being made?

Between delivering valuable design work to our stage, engaging independently in user research, and collaborating with our cross-stage partners, product designers have very little time to focus on personal growth.

To help super-charge the personal growth of the designers on the CI/CD UX team, we are dedicating one day a milestone (near Friends and Family day) where we focus only on our personal growth.

Having the team do it together has a few advantages:

• Greater individual confidence in dedicating this day for growth because the rest of the team is also taking that time.
• Availability to collaborate on our growth, bringing each other up if we want to.

By collaborating together, we, as a team bring each other up.

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the "Maintained by" section in on the page being edited.
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies.
  • If the changes relate to any part of the project other than updates to content and/or data files please make sure to ping @gl-static-site-editor in a comment for a review and merge. For example changes to .gitlab-ci.yml, JavaScript/CSS/Ruby code or the layout files. (this requirement has been removed pending identification of a new DRI for the handbook)