Bump Skyline.DataMiner.Dev.Protocol from 10.5.1 to 10.5.2.1

Bumps Skyline.DataMiner.Dev.Protocol from 10.5.1 to 10.5.2.1.

---
updated-dependencies:
- dependency-name: Skyline.DataMiner.Dev.Protocol
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

ProtocolTests/ProtocolTests.csproj

@@ -14,7 +14,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Skyline.DataMiner.Dev.Protocol" Version="10.5.1" />
+    <PackageReference Include="Skyline.DataMiner.Dev.Protocol" Version="10.5.2.1" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>