Bump package versions

Author: drewnoakes

src/Directory.Build.props

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" PrivateAssets="All" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.3.0" PrivateAssets="All" />
   </ItemGroup>
 
   <!-- Workaround for https://github.com/dotnet/sourcelink/issues/572 -->

src/NetMQ/NetMQ.csproj

@@ -35,23 +35,23 @@
 
   <ItemGroup>
     <PackageReference Include="AsyncIO" Version="0.1.69" />
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
     <PackageReference Include="NaCl.Net" Version="0.1.13" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
-    <PackageReference Include="System.ServiceModel.Primitives" Version="4.4.0" />
+    <PackageReference Include="System.ServiceModel.Primitives" Version="4.9.0" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.1' ">
-    <PackageReference Include="System.ServiceModel.Primitives" Version="4.4.0" />
+    <PackageReference Include="System.ServiceModel.Primitives" Version="4.9.0" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFrameworkIdentifier)' == '.NETFramework' ">
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
     <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
     <Reference Include="System.ServiceModel" />
     <Reference Include="System" />