This adds my tag-ur-it action to the beam repo to automatically label issues based on the responses to the issue forms. Before merging, this action will need to be approved by the ASF Infra team (open ticket with Infra).

You can see this action correctly labeling issues here - damccorm/beam-issue-templates#7

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• Choose reviewer(s) and mention them in a comment (R: @username).
• Format the pull request title like [BEAM-XXX] Fixes bug in ApproximateQuantiles, where you replace BEAM-XXX with the appropriate JIRA issue, if applicable. This will automatically link the pull request to the issue.
• Update CHANGES.md with noteworthy changes.
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