Fix dependencies (#380)

README-BEFORE-UPDATE-REFS.txt

@@ -1,6 +1,8 @@
-Notes on updating the project references:
+Notes on updating the project references:
 
 IMPORTANT VERSION CONSTRAINTS:
-- System.Threading.Tasks.Extensions must not be updated beyond version 4.5.4
+- Can't reference any library requiring System.Threading.Tasks.Extensions must not be updated beyond version 4.5.4
   Reason: The VS2019 extension will fail due to a transitive dependency conflict between
           Compilers.Services.Unsafe and System.Collections.Immutable.
+- Can't update Polly beyond version 7.2.4 because of dependency conflicts with System.Threading.Tasks.Extensions.
+

USB Test App WPF/Serial Test App WPF.csproj

@@ -105,7 +105,7 @@
       <Version>2.0.7</Version>
     </PackageReference>
     <PackageReference Include="CommunityToolkit.Mvvm">
-      <Version>8.3.2</Version>
+      <Version>8.2.2</Version>
     </PackageReference>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection">
       <Version>6.0.2</Version>

nanoFramework.Tools.DebugLibrary.Net/nanoFramework.Tools.DebugLibrary.Net.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>library</OutputType>
     <TargetFrameworks>net6.0;net472</TargetFrameworks>
@@ -77,13 +77,10 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Polly">
-      <Version>8.5.0</Version>
-    </PackageReference>
+    <PackageReference Include="Polly" Version="7.2.4" />
     <PackageReference Include="System.IO.Ports">
       <Version>8.0.0</Version>
     </PackageReference>
-    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
   </ItemGroup>
   <Import Project="..\nanoFramework.Tools.DebugLibrary.Shared\nanoFramework.Tools.DebugLibrary.Net.projitems" Label="Shared" />
 </Project>