Random project updates

[johnjohndoe]

• Dependency updates.
• Update Hessen data.
• Remove tracking code from mother project.

[johnjohndoe]

I wonder if a parsing library should be used instead of dealing with all the edge cases manually. See https://github.com/CodeforLeipzig/wo-ist-testzentrum/commit/9b03a95e0f3fc67361658c57e0864a966c81a105#r52308853.

[joergreichert]

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