Bump SSH.NET from 2016.0.0 to 2020.0.2

Bumps [SSH.NET](https://github.com/sshnet/SSH.NET) from 2016.0.0 to 2020.0.2.
- [Release notes](https://github.com/sshnet/SSH.NET/releases)
- [Commits](sshnet/SSH.NET@2016.0.0...2020.0.2)

---
updated-dependencies:
- dependency-name: SSH.NET
  dependency-type: direct:production
...

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

ManageVpnGatewayVNet2VNetConnection.csproj

@@ -23,7 +23,7 @@
     <PackageReference Include="Microsoft.Azure.KeyVault" Version="3.0.1" />
     <PackageReference Include="CoreFTP" Version="1.2.0" />
     <PackageReference Include="Microsoft.Azure.ServiceBus" Version="0.0.2-preview" />
-    <PackageReference Include="SSH.NET" Version="2016.0.0" />
+    <PackageReference Include="SSH.NET" Version="2020.0.2" />
     <PackageReference Include="Docker.DotNet" Version="2.124.3" />
     <PackageReference Include="Docker.DotNet.X509" Version="2.124.3" />
     <PackageReference Include="WindowsAzure.Storage" Version="9.3.3" />