Update pr-checks.yml

Update action dependencies to versions using node 20

Author: joshkempner

.github/workflows/pr-checks.yml

@@ -59,20 +59,20 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
     # Install the .NET Core workload
     - name: Install .NET ${{ matrix.dotnet-version }}
       if: ${{ matrix.dotnet-version == '6.0.x' }}
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: ${{ matrix.dotnet-version }}
 
     # Add  MSBuild to the PATH: https://github.com/microsoft/setup-msbuild
     - name: Setup MSBuild.exe
-      uses: microsoft/setup-msbuild@v1.3.1
+      uses: microsoft/setup-msbuild@v2
 
     # Build all framework versions
     - name: Build all