chore: rename MeasurementPoint to MeteringPoint

[MadsDue]

Description

see title.

Next step is to make the same rename in EDI and update EDI to use this new version of the nuget package.

References

Link to assignment:

Checklist

• Should the change be behind a feature flag?
• Can the feature be meaningfully disabled or circumvented if there are issues (e.g., database-breaking changes)?
• Has it been considered whether data is being delivered to the wrong actor?
• Subsystem test executed (dev_002/dev_003)
  • Orchestrations => https://github.com/Energinet-DataHub/dh3-environments/actions/runs/12783755894
• Is there time to monitor state of the release to Production?
• Reference to the task => https://app.zenhub.com/workspaces/mosaic-60a6105157304f00119be86e/issues/gh/energinet-datahub/team-mosaic/393