chore: Update terminology data (Monthly)

[github-actions]

Summary

Updates terminology data files used by the FHIR converter.

Changed files

• src/Dibbs.Fhir.Liquid.Converter/Loinc.csv
• src/Dibbs.Fhir.Liquid.Converter/Snomed.csv
• src/Dibbs.Fhir.Liquid.Converter/rxnorm.csv

Next steps for approvers

Before merging this PR:

• Review the generated terminology CSV changes.

After this PR is approved:

1. Merge this FHIR converter PR into main.
2. Create a new GitHub release for dibbs-FHIR-Converter from the updated main branch:
   • Go to https://github.com/CDCgov/dibbs-FHIR-Converter/releases.
   • Draft a new release using the repository's current release naming/versioning convention.
   • Make sure the release target includes this merged terminology update.
   • Generate release notes that mention the terminology data refresh.
   • Publish the release and copy the exact release tag.
3. Open a PR in CDCgov/dibbs-ecr-viewer to update containers/fhir-converter/Dockerfile.
4. In that Dockerfile, update the git clone https://github.com/CDCgov/dibbs-FHIR-Converter.git --branch ... value to the new FHIR converter release tag.
5. Make sure all checks pass before merging the eCR Viewer PR.
6. Once merged, create a new release of the eCR Viewer for users to receive these updates.