Update v3 package versions to 3.1.1

Author: kshyju

Functions.Templates/ProjectTemplate_v3.x/CSharp/Company.FunctionApp.csproj

@@ -5,7 +5,7 @@
     <RootNamespace Condition="'$(name)' != '$(name{-VALUE-FORMS-}safe_namespace)'">Company.FunctionApp</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.1.0" />
+    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.1.1" />
   </ItemGroup>
   <ItemGroup>
     <None Update="host.json">

Functions.Templates/ProjectTemplate_v3.x/FSharp/Company.FunctionApp.fsproj

@@ -5,7 +5,7 @@
     <RootNamespace Condition="'$(name)' != '$(name{-VALUE-FORMS-}safe_namespace)'">Company.FunctionApp</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.1.0" />
+    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.1.1" />
   </ItemGroup>
   <ItemGroup>
     <None Update="host.json">