Bump IdentityModelTokenPackageVersion in /converter/dicom-cast (#2670)

Bumps `IdentityModelTokenPackageVersion` from 6.30.0 to 6.30.1.

Updates `Microsoft.IdentityModel.Tokens` from 6.30.0 to 6.30.1
- [Release notes](https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet/releases)
- [Changelog](https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet/blob/dev/CHANGELOG.md)
- [Commits](AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet@6.30.0...6.30.1)

Updates `System.IdentityModel.Tokens.Jwt` from 6.30.0 to 6.30.1
- [Release notes](https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet/releases)
- [Changelog](https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet/blob/dev/CHANGELOG.md)
- [Commits](AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet@6.30.0...6.30.1)

---
updated-dependencies:
- dependency-name: Microsoft.IdentityModel.Tokens
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: System.IdentityModel.Tokens.Jwt
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>