Update for .NET 9 - release-3.0 (#462)

* Updates for .NET 9
Co-authored-by: internalautomation[bot] <85681268+internalautomation[bot]@users.noreply.github.com>
Co-authored-by: Jayanthi <jayanthi.sourirajan@particular.net>

.github/workflows/ci.yml

@@ -17,17 +17,13 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.1.2
+        uses: actions/checkout@v4.2.2
         with:
-          fetch-depth: 0
-      - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v4.0.0
-        with:
-          dotnet-version: 8.0.x
+          fetch-depth: 0 
       - name: Build
         run: dotnet build src --configuration Release
       - name: Upload packages
-        uses: actions/upload-artifact@v4.3.1
+        uses: actions/upload-artifact@v4.4.3
         with:
           name: NuGet packages
           path: nugets/

.github/workflows/release.yml

@@ -14,13 +14,9 @@ jobs:
     runs-on: windows-2019 # Needs System.Configuration and System.ServiceModel from Windows
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.1.2
+        uses: actions/checkout@v4.2.2
         with:
-          fetch-depth: 0    
-      - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v4.0.0
-        with:
-          dotnet-version: 8.0.x
+          fetch-depth: 0
       - name: Build
         run: dotnet build src --configuration Release
       - name: Sign NuGet packages
@@ -31,7 +27,7 @@ jobs:
           client-secret: ${{ secrets.AZURE_KEY_VAULT_CLIENT_SECRET }}
           certificate-name: ${{ secrets.AZURE_KEY_VAULT_CERTIFICATE_NAME }}
       - name: Publish artifacts
-        uses: actions/upload-artifact@v4.3.1
+        uses: actions/upload-artifact@v4.4.3
         with:
           name: nugets
           path: nugets/*

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.400",
+    "version": "9.0.100",
     "rollForward": "latestFeature"
   }
 }