Update NuGet package versions and target framework

This commit updates the versions of several NuGet packages in the PCAxis.Menu.UnitTest.csproj and PCAxis.Menu.csproj files. The updates include:
- Microsoft.NET.Test.Sdk: updated from 17.6.2 to 17.9.0
- MSTest.TestAdapter and MSTest.TestFramework: updated from 3.0.4 to 3.3.1
- coverlet.collector: updated from 6.0.0 to 6.0.2

In addition, the target framework of the PCAxis.Menu.UnitTest.csproj file has been upgraded from .NET Core 3.0 to .NET 8.0. These changes aim to improve the functionality and performance of the software.

References to the code changes can be found in the respective .csproj files.

Author: likp

.github/dependabot.yml

@@ -0,0 +1,15 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "nuget"
+    directory: "/"
+    schedule:
+      interval: "daily"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/msbuild.yml

@@ -0,0 +1,38 @@
+# This is a basic workflow to help you get started with Actions
+
+name: BuildAndRunTests
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["master"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        configuration: [Debug, Release]
+        os: [windows-latest, ubuntu-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build the application
+        run: dotnet build --no-restore --configuration ${{ matrix.configuration }}
+
+      - name: Execute unit tests
+        run: dotnet test --verbosity normal

.github/workflows/nuget.yml

@@ -7,17 +7,17 @@ on:
 jobs:
   release:
 
-    runs-on: windows-2019
+    runs-on: windows-2022
 
     steps:
 
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0    
 
-    - uses: microsoft/setup-msbuild@v1
+    - uses: microsoft/setup-msbuild@v2
 
-    - uses: NuGet/setup-nuget@v1
+    - uses: NuGet/setup-nuget@v2
 
     - name: Restore NuGet packages
       run: nuget restore