Add optional state parameters to AsyncHelper (PHNX-12680) (#4)

Motivation
----------
In some scenarios this can reduce heap allocations of closures.

Modifications
-------------
Add the optional state parameter and matching unit tests.

Drop .NET 5 target since it is EOL and target .NET 6.

https://centeredge.atlassian.net/browse/PHNX-12680

.github/workflows/build.yml

@@ -12,29 +12,29 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
 
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 6.0.x
+
     - name: Install GitVersion
-      uses: gittools/actions/gitversion/[email protected].10
+      uses: gittools/actions/gitversion/[email protected].15
       with:
         versionSpec: "5.8.0"
 
     - name: Determine Version
       id: gitversion
-      uses: gittools/actions/gitversion/[email protected].10
+      uses: gittools/actions/gitversion/[email protected].15
       with:
         useConfigFile: true
         configFilePath: "GitVersion.yml"
 
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
-      with:
-        dotnet-version: 6.0.x
-
     # Cache packages for faster subsequent runs
-    - uses: actions/cache@v2
+    - uses: actions/cache@v3
       with:
         path: ~/.nuget/packages
         key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}
@@ -44,7 +44,7 @@ jobs:
     - name: Restore
       working-directory: ./src
       run: >-
-        dotnet nuget add source --username USERNAME --password ${{ secrets.GH_PACKAGES_TOKEN }} --store-password-in-clear-text --name github https://nuget.pkg.github.com/CenterEdge/index.json
+        dotnet nuget add source --name github https://nuget.pkg.github.com/CenterEdge/index.json
         && dotnet restore ./CenterEdge.Async.sln
 
     - name: Build

.github/workflows/cleanup-packages.yml

@@ -13,8 +13,9 @@ jobs:
       packages: write
 
     steps:
-    - uses: actions/delete-package-versions@v2
+    - uses: actions/delete-package-versions@v4
       with:
         package-name: CenterEdge.Async
+        package-type: nuget
         min-versions-to-keep: 30
         ignore-versions: ^(?!.*ci-pr).*$

src/CenterEdge.Async.Benchmarks/CenterEdge.Async.Benchmarks.csproj

@@ -14,8 +14,8 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.0" />
-    <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.13.0" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
+    <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.13.5" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\CenterEdge.Async\CenterEdge.Async.csproj" />