Update 3 NuGet dependencies

Author: github-actions[bot]

nanoFramework.WebServer.nuspec

@@ -22,14 +22,15 @@ Perfect for simple embedded web pages, with Support of file on a storage (USB, S
 Supports both HTTPS and HTTP.</description>
     <tags>http https webserver net netmf nf nanoframework</tags>
     <dependencies>
-      <dependency id="nanoFramework.CoreLibrary" version="1.11.7" />
-      <dependency id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" />
+      <dependency id="nanoFramework.CoreLibrary" version="1.12.0-preview.1" />
+      <dependency id="nanoFramework.Runtime.Events" version="1.10.0-preview.4" />
       <dependency id="nanoFramework.System.Collections" version="1.3.0" />
       <dependency id="nanoFramework.System.Text" version="1.1.3-preview.4" />
       <dependency id="nanoFramework.System.Net" version="1.8.0-preview.9" />
       <dependency id="nanoFramework.System.Net.Http.Server" version="1.4.0-preview.6" />
       <dependency id="nanoFramework.Windows.Storage" version="1.4.6-preview.5" />
       <dependency id="nanoFramework.Windows.Storage.Streams" version="1.12.4-preview.3" />
+      <dependency id="nanoFramework.System.Threading" version="1.0.4-preview.6" />
     </dependencies>
   </metadata>
   <files>

nanoFramework.WebServer/nanoFramework.WebServer.nfproj

@@ -44,12 +44,12 @@
     <None Include="key.snk" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.11.7.2, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.1.11.7\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.12.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.CoreLibrary.1.12.0-preview.1\lib\mscorlib.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.10.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Runtime.Events.1.10.0-preview.1\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Events.1.10.0-preview.4\lib\nanoFramework.Runtime.Events.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=1.3.0.3, Culture=neutral, PublicKeyToken=c07d481e9758c731">
@@ -68,8 +68,8 @@
       <HintPath>..\packages\nanoFramework.System.Net.Http.Server.1.4.0-preview.6\lib\System.Net.Http.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Threading, Version=1.0.3.3, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Threading.1.0.3\lib\System.Threading.dll</HintPath>
+    <Reference Include="System.Threading, Version=1.0.4.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.System.Threading.1.0.4-preview.6\lib\System.Threading.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Windows.Storage, Version=1.4.6.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">

nanoFramework.WebServer/packages.config

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.11.7" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.CoreLibrary" version="1.12.0-preview.1" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.Runtime.Events" version="1.10.0-preview.4" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.3.0" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Net" version="1.8.0-preview.9" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Net.Http.Server" version="1.4.0-preview.6" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Text" version="1.1.3-preview.4" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Threading" version="1.0.3" />
+  <package id="nanoFramework.System.Threading" version="1.0.4-preview.6" />
   <package id="nanoFramework.Windows.Storage" version="1.4.6-preview.5" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Windows.Storage.Streams" version="1.12.4-preview.3" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.4.205" developmentDependency="true" targetFramework="netnanoframework10" />