Move Art 5 tests to Ubuntu 24 (jammy) to see how that works

Also renamed an argument to be correct.

Bug: b/425835454
Bug: b/434083099
Change-Id: Icb69f87ec7e8e8f45ed9581f1ec46fcf852615b5

infra/config/global/generated/cr-buildbucket.cfg

diff --git a/infra/config/global/generated/cr-buildbucket.cfg b/infra/config/global/generated/cr-buildbucket.cfg
index 3a60dff..7d9b614 100644
--- a/infra/config/global/generated/cr-buildbucket.cfg
+++ b/infra/config/global/generated/cr-buildbucket.cfg
@@ -779,7 +779,7 @@
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cpu:x86-64"
       dimensions: "normal:true"
-      dimensions: "os:Ubuntu-22.04"
+      dimensions: "os:Ubuntu-24.04"
       dimensions: "pool:luci.r8.ci"
       exe {
         cipd_package: "infra_internal/recipe_bundles/chrome-internal.googlesource.com/chrome/tools/build"
@@ -817,7 +817,7 @@
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cpu:x86-64"
       dimensions: "normal:true"
-      dimensions: "os:Ubuntu-22.04"
+      dimensions: "os:Ubuntu-24.04"
       dimensions: "pool:luci.r8.ci"
       exe {
         cipd_package: "infra_internal/recipe_bundles/chrome-internal.googlesource.com/chrome/tools/build"

infra/config/global/main.star

diff --git a/infra/config/global/main.star b/infra/config/global/main.star
index 862f835..2f148d4 100755
--- a/infra/config/global/main.star
+++ b/infra/config/global/main.star
@@ -168,7 +168,7 @@
 
 default_timeout = time.hour * 6
 
-def get_dimensions(windows = False, internal = False, archive = False, noble=True):
+def get_dimensions(windows = False, internal = False, archive = False, jammy=True):
     # We use the following setup:
     #   windows -> always windows machine
     #   internal -> always internal, single small, machine
@@ -181,10 +181,10 @@
     if windows:
         dimensions["os"] = "Windows-11"
     else:
-        if noble:
+        if jammy:
             dimensions["os"] = "Ubuntu-22.04"
         else:
-            dimensions["os"] = "Ubuntu-20.04"
+            dimensions["os"] = "Ubuntu-24.04"
     if internal:
         dimensions["internal"] = "true"
     elif archive:
@@ -404,7 +404,7 @@
 r8_tester_with_default(
     "linux-android-5",
     ["--dex_vm=5.1.1", "--all_tests", "--command_cache_dir=/tmp/ccache"],
-    dimensions = get_dimensions(noble=True),
+    dimensions = get_dimensions(jammy=False),
 )
 
 r8_tester_with_default(