update build.yml .NET SDK versions

Author: Bertk

eng/azure-pipelines-nightly.yml

@@ -4,13 +4,13 @@ pool:
 steps:
 - task: UseDotNet@2
   inputs:
-    version: 6.0.428
-  displayName: Install .NET Core SDK 6.0.428
+    version: 8.0.408
+  displayName: Install .NET Core SDK 8.0.408
 
 - task: UseDotNet@2
   inputs:
     useGlobalJson: true
-  displayName: Install .NET Core SDK 8.0.113
+  displayName: Install .NET Core SDK 9.0.203
 
 - task: NuGetAuthenticate@1
   displayName: Authenticate with NuGet feeds

eng/build.yml

@@ -6,13 +6,13 @@ steps:
 
 - task: UseDotNet@2
   inputs:
-    version: 8.0.114
-  displayName: Install .NET Core SDK 8.0.114
+    version: 8.0.408
+  displayName: Install .NET Core SDK 8.0.408
 
 - task: UseDotNet@2
   inputs:
     useGlobalJson: true
-  displayName: Install .NET Core SDK 9.0.202
+  displayName: Install .NET Core SDK 9.0.203
 
 # create artifact/package folder
 - pwsh: |