Bump System.Text.Json from 8.0.3 to 8.0.5 in /SharpChatwork

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 8.0.3 to 8.0.5.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.3...v8.0.5)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

SharpChatwork/SharpChatwork.csproj

@@ -41,7 +41,7 @@ Release.</PackageReleaseNotes>
 
   <ItemGroup>
     <PackageReference Include="MimeMapping" Version="3.0.1" />
-    <PackageReference Include="System.Text.Json" Version="8.0.3" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
   </ItemGroup>
 
 </Project>