Update to net9 image for azurelinux

Co-authored-by: Matt Thalman <[email protected]>

Author: marcpopMSFT

.vsts-ci.yml

@@ -63,15 +63,15 @@ extends:
       alpine322:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.22-amd64
       azureLinux30:
-        image: mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-net8.0-build-amd64
+        image: mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-net9.0-build-amd64
       centosStream9:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9
       debian12Amd64:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-gcc14-amd64
       fedora41:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-41
       azureLinux30CrossArm:
-        image: mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-net8.0-cross-arm-alpine
+        image: mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-net9.0-cross-arm-alpine
       ubuntu2204DebPkg:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-debpkg
     sdl: