Update 1 nuget dependencies (#10)

Author: github-actions[bot]

nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj

@@ -88,7 +88,7 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=1.2.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.1.2.0-preview.36\lib\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.1.2.0-preview.39\lib\nanoFramework.System.Collections.dll</HintPath>
       <Private>True</Private>
     </Reference>
   </ItemGroup>

nanoFramework.System.Threading/packages.config

@@ -4,6 +4,6 @@
   <package id="Microsoft.SourceLink.Common" version="1.0.0" targetFramework="netnanoframework10" developmentDependency="true" />
   <package id="Microsoft.SourceLink.GitHub" version="1.0.0" targetFramework="netnanoframework10" developmentDependency="true" />
   <package id="nanoFramework.CoreLibrary" version="1.10.3-preview.7" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Collections" version="1.2.0-preview.36" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Collections" version="1.2.0-preview.39" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.3.37" developmentDependency="true" targetFramework="netnanoframework10" />
 </packages>