Azure: Update to latest containers

Soon Azure will be removing the macOS-12 container in following their
normal support schedule. Move us to macOS-14 so we won't have problems
there for a while. At the same time, our Windows container is the oldest
supported, so move to the newer option. Finally, Ubuntu 22.04 is the
middle option currently, but 24.04 should be fine.

Link: https://github.com/actions/runner-images/issues/10721
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index 813640d..3ff1b44 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -1,7 +1,7 @@
 variables:
-  windows_vm: windows-2019
-  ubuntu_vm: ubuntu-22.04
-  macos_vm: macOS-12
+  windows_vm: windows-2022
+  ubuntu_vm: ubuntu-24.04
+  macos_vm: macOS-14
   ci_runner_image: trini/u-boot-gitlab-ci-runner:jammy-20240808-21Aug2024
   # Add '-u 0' options for Azure pipelines, otherwise we get "permission
   # denied" error when it tries to "useradd -m -u 1001 vsts_azpcontainer",