Sentry workflow update

Why is this change being made?

This MR updates the workflow that Support Engineering uses to help diagnose 5XX errors on GitLab.com to add how to search Sentry for a correlation ID found in Kibana.

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what