[infra] Route vm-fuchsia-release-x64 to machines with KVM.

Change-Id: Ic2c92eceefeecc8bf3d0347bf1eee27b29339fe6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/364166
Reviewed-by: Jonas Termansen <sortie@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
diff --git a/generated/cr-buildbucket.cfg b/generated/cr-buildbucket.cfg
index f1b59d2..d0cb723 100644
--- a/generated/cr-buildbucket.cfg
+++ b/generated/cr-buildbucket.cfg
@@ -7516,8 +7516,8 @@
       name: "vm-fuchsia-release-x64"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "cpu:x86-64"
-      dimensions: "host_class:default"
-      dimensions: "os:Ubuntu-20"
+      dimensions: "host_class:virtualization"
+      dimensions: "os:Ubuntu-22"
       dimensions: "pool:luci.dart.try"
       exe {
         cipd_package: "dart/recipe_bundles/dart.googlesource.com/recipes"
@@ -12669,8 +12669,8 @@
       name: "vm-fuchsia-release-x64-try"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "cpu:x86-64"
-      dimensions: "host_class:default"
-      dimensions: "os:Ubuntu-20"
+      dimensions: "host_class:virtualization"
+      dimensions: "os:Ubuntu-22"
       dimensions: "pool:luci.dart.try"
       exe {
         cipd_package: "dart/recipe_bundles/dart.googlesource.com/recipes"
diff --git a/vm.star b/vm.star
index c5735d4..5674e00 100644
--- a/vm.star
+++ b/vm.star
@@ -378,6 +378,7 @@
     "vm-fuchsia-release-x64",
     category = "vm|misc|f",
     channels = ["try"],
+    dimensions = [jammy, {"host_class": "virtualization"}],
     properties = [fuchsia_deps],
 )