GeoDbTagSvc: fixed a typo in GeoDbTagSvc::setupTags()

Vakhtang Tsulaiarequested to merge
tsulaia/athena:23.0-bugfix into 23.0

This MR fixes a typo spotted by @clantz (see the comment). Given that !67117 (merged) is targeted to 23.0, I'm targeting this MR to 23.0 too.

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