Bump HIC.RDMP.Plugin from 7.0.18 to 7.0.20

Bumps [HIC.RDMP.Plugin](https://github.com/HicServices/RDMP) from 7.0.18 to 7.0.20.
- [Release notes](https://github.com/HicServices/RDMP/releases)
- [Changelog](https://github.com/HicServices/RDMP/blob/develop/CHANGELOG.md)
- [Commits](HicServices/RDMP@v7.0.18...v7.0.20)

---
updated-dependencies:
- dependency-name: HIC.RDMP.Plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Rdmp.Dicom/Rdmp.Dicom.csproj

@@ -26,7 +26,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="HIC.DicomTypeTranslation" Version="4.0.1" />
-    <PackageReference Include="HIC.RDMP.Plugin" Version="7.0.18" />
+    <PackageReference Include="HIC.RDMP.Plugin" Version="7.0.20" />
     <PackageReference Include="SharpCompress" Version="0.32.2" />
     <PackageReference Include="Terminal.Gui" Version="1.7.2" />
   </ItemGroup>