Update Nominatim version to 4.2.4

[what-the-diff[bot]]

PR Summary

• Updated Nominatim Version The version of Nominatim that we use has been updated from 4.2.3 to 4.2.4 within the Dockerfile. This change may include new updates and bug fixes which improve our service's functionality.

• Updated User Agent The User Agent identifier in Dockerfile has been updated to align with the new Nominatim update. This identifier helps us signify the tool and version we are utilizing which is essential for tracking and maintenance.

• Updated Documentation The supported Nominatim version mentioned in the README file has been updated to 4.2.4. This helps ensure our documentation remains current and correctly reflects the software version in use.

[leonardehrenfried]

I can't get over how sincere and serious the tone of these AI-genrated change summaries is. 😂

Sounds like a junior developer trying way to hard to sound professional.

[philipkozeny]

I can't get over how sincere and serious the tone of these AI-genrated change summaries is. 😂

Sounds like a junior developer trying way to hard to sound professional.

😅 ... and writing a two page changelog for a one-liner