Removed net6.0 images from the verify lists.

.github/workflows/main.yml

@@ -399,16 +399,13 @@ jobs:
       fail-fast: false
       matrix:
         image:
-          - 'ubuntu:18.04'
           - 'ubuntu:20.04'
-          - 'ubuntu:latest'
+          - 'ubuntu:22.04'
+          - 'ubuntu:24.04'
           - 'tgagor/centos:stream9'
           - 'mcr.microsoft.com/dotnet/aspnet:latest'
-          - 'mcr.microsoft.com/dotnet/runtime:6.0'
-          - 'mcr.microsoft.com/dotnet/runtime:latest'
-          - 'amazon/aws-lambda-dotnet:6'
+          - 'mcr.microsoft.com/dotnet/runtime:8.0'
           - 'amazon/aws-lambda-dotnet:8'
-          - 'public.ecr.aws/lambda/dotnet:6-x86_64'
           - 'public.ecr.aws/lambda/dotnet:8-x86_64'
 
     container:
@@ -455,7 +452,6 @@ jobs:
         image:
           - 'alpine:latest'
           - 'mcr.microsoft.com/dotnet/aspnet:8.0-alpine'
-          - 'mcr.microsoft.com/dotnet/runtime:6.0-alpine'
           - 'mcr.microsoft.com/dotnet/runtime:8.0-alpine'
 
     container: