Allow Get Together grants any time during the quarter

Why is this change being made?

To encourage team members to get together more often, either in-person or virtually.

As a virtual organisation we were especially affected by COVID-19 as our annual conference was cancelled several times and many team members have never met anyone else at GitLab in person. The visiting grants program is a great opportunity for team members to (finally) meet in-person. By providing a lower-budget encouragement ($50) with less organisational overhead, we may see more in-person interaction between team members.

The current rules constrain such meetings to the start of the quarter only: this MR proposes an expensible meetup at anytime in the quarter, but still limited to one per quarter.

Author Checklist

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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• If the changes affect team members, or warrant an announcement in another way, please consider posting an update in #whats-happening-at-gitlab linking to this MR
  • If this is a change that directly impacts the majority of global team members, it should be a candidate for #company-fyi. Please work with internal communications and check the handbook for examples.

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