pipeline updates

Author: SharePointRadi

.github/workflows/main.yml

@@ -15,12 +15,12 @@ jobs:
       NUGET_SOURCE: https://api.nuget.org/v3/index.json
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v2
+      uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 9.0.x
 
     - name: Restore dependencies
       run: dotnet restore ./src/OneBitSoftware.Utilities.OperationResult.sln

.github/workflows/pull-request-validation.yml

@@ -15,12 +15,12 @@ jobs:
       NUGET_SOURCE: https://api.nuget.org/v3/index.json
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v2
+      uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 9.0.x
 
     - name: Restore dependencies
       run: dotnet restore ./src/OneBitSoftware.Utilities.OperationResult.sln