Update deploy_demo.yml (#4275)

Use specific net 9 SDK

Author: vnbaaij

.github/workflows/deploy_demo.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Build and deploy Demo site
     env:
-      DOTNET_VERSION: "net10.0"
+      DOTNET_VERSION: "net9.0"
       DOTNET_CLI_TELEMETRY_OPTOUT: 1
       DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
       DOTNET_NOLOGO: true
@@ -37,17 +37,17 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v4
 
-      # - name: .NET Setup SDKs
-      #   uses: actions/setup-dotnet@v4
-      #   with:
-      #     dotnet-version: 9.0.x
-      #     dotnet-quality: ga
-
-      - name: Setup .NET 10.0
+      - name: .NET Setup SDKs
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 10.0.x
-          dotnet-quality: preview
+          dotnet-version: 9.0.205
+          dotnet-quality: ga
+
+      #- name: Setup .NET 10.0
+      #  uses: actions/setup-dotnet@v4
+      #  with:
+      #    dotnet-version: 10.0.x
+      #    dotnet-quality: preview
 
       - name: NPM Install
         uses: actions/setup-node@v4
@@ -61,7 +61,7 @@ jobs:
         run: dotnet build ${{ env.PROJECT }} -c ${{ env.BUILD_CONFIG }} -o publish -f ${{ env.DOTNET_VERSION }} -r linux-x64 --self-contained=true -p:BuildNumber=$BUILD_NUMBER -p:SourceRevisionId=$GITHUB_SHA -p:ContinuousIntegrationBuild=true
 
       - name: .NET Publish
-        run: dotnet publish ${{ env.PROJECT }} -c ${{ env.BUILD_CONFIG }} -o publish -f ${{ env.DOTNET_VERSION }} -r linux-x64 --self-contained=true -p:BuildNumber=$BUILD_NUMBER -p:SourceRevisionId=$GITHUB_SHA -p:ContinuousIntegrationBuild=true --no-build
+        run: dotnet publish ${{ env.PROJECT }} -c ${{ env.BUILD_CONFIG }} -o publish -f ${{ env.DOTNET_VERSION }} -r linux-x64 --self-contained=true -p:BuildNumber=$BUILD_NUMBER -p:SourceRevisionId=$GITHUB_SHA -p:ContinuousIntegrationBuild=true
 
       - name: Deploy demo site to Azure Static Web App 
         id: builddeploy