Update 1 nuget dependencies

Author: github-actions[bot]

nanoFramework.WebServer.nuspec

@@ -27,7 +27,7 @@
       <dependency id="nanoFramework.Runtime.Events" version="1.9.0-preview.14" />
       <dependency id="nanoFramework.System.Collections" version="1.2.0-preview.29" />
       <dependency id="nanoFramework.System.Text" version="1.1.1-preview.33" />
-      <dependency id="nanoFramework.System.Net" version="1.3.3-preview.55" />
+      <dependency id="nanoFramework.System.Net" version="1.6.4-alpha-pr164.4" />
       <dependency id="nanoFramework.System.Net.Http.Server" version="1.3.3-preview.60" />
       <dependency id="nanoFramework.Windows.Storage" version="1.4.4-preview.49" />
       <dependency id="nanoFramework.Windows.Storage.Streams" version="1.10.1-preview.26" />

nanoFramework.WebServer/nanoFramework.WebServer.nfproj

@@ -60,8 +60,8 @@
       <HintPath>..\packages\nanoFramework.System.Text.1.1.1-preview.33\lib\nanoFramework.System.Text.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Net, Version=1.6.3.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Net.1.6.3-preview.35\lib\System.Net.dll</HintPath>
+    <Reference Include="System.Net, Version=1.6.4.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.System.Net.1.6.4-alpha-pr164.4\lib\System.Net.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net.Http, Version=1.3.3.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">

nanoFramework.WebServer/packages.config

@@ -3,7 +3,7 @@
   <package id="nanoFramework.CoreLibrary" version="1.10.1-preview.11" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.9.0-preview.14" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.2.0-preview.29" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Net" version="1.6.3-preview.35" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Net" version="1.6.4-alpha-pr164.4" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Net.Http.Server" version="1.3.3-preview.60" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Text" version="1.1.1-preview.33" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Windows.Storage" version="1.4.4-preview.49" targetFramework="netnanoframework10" />