Bump Microsoft.NETFramework.ReferenceAssemblies from 1.0.2 to 1.0.3

Bumps [Microsoft.NETFramework.ReferenceAssemblies](https://github.com/Microsoft/dotnet) from 1.0.2 to 1.0.3.
- [Release notes](https://github.com/Microsoft/dotnet/releases)
- [Commits](https://github.com/Microsoft/dotnet/commits)

---
updated-dependencies:
- dependency-name: Microsoft.NETFramework.ReferenceAssemblies
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/json-ld.net/json-ld.net.csproj

@@ -37,7 +37,7 @@ Implements the W3C JSON-LD 1.0 standard.</Description>
     <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.3.1" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net40'">
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Include="Microsoft.Net.Http" Version="2.2.29" />
     <PackageReference Include="Microsoft.Bcl.Async" Version="1.0.168" />
   </ItemGroup>