update dotnet container image

demo/apps/dotnet_deployment.yaml

@@ -17,12 +17,12 @@ spec:
     spec:
       containers:
         - name: aspnetapp
-          image: docker.io/avadhutp123/aspnetapp:latest  # source code of the application: https://github.com/dotnet/dotnet-docker/tree/main/samples/aspnetapp
+          image: ghcr.io/open-telemetry/opentelemetry-operator/e2e-test-app-dotnet:main  # source code of the application: https://github.com/dotnet/dotnet-docker/tree/main/samples/aspnetapp
           env:
             - name: ASPNETCORE_URLS
-              value: 'http://+:4000'
+              value: 'http://+:8000'
           ports:
-            - containerPort: 4000
+            - containerPort: 8000
 ---
 apiVersion: v1
 kind: Service
@@ -32,6 +32,6 @@ spec:
   type: ClusterIP
   ports:
   - port: 80
-    targetPort: 4000
+    targetPort: 8000
   selector:
-    app: aspnetapp
+    app: aspnetapp