fix: exclude verbose region names in geonames uploader SNG-1902

[0c0w3]

References

JIRA: https://mozilla-hub.atlassian.net/browse/SNG-1902

Description

In the GeoNames data, U.S. states have verbose alternate names like "State of California" that people are unlikely to type and that interfere with prefix matching. The Merino uploader job should filter them out.

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• [ ] The PR title starts with the JIRA issue reference, format [DISCO-####], and has the same title (if applicable)
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• [ ] Functional and performance test coverage has been expanded and maintained (if applicable)