Try Art 5.1.1 on Ubuntu 22 again

Bug: b/425835454
Change-Id: I79c6563654cdef711f2578075223126e5ff7a083
diff --git a/infra/config/global/generated/cr-buildbucket.cfg b/infra/config/global/generated/cr-buildbucket.cfg
index 72dfcc9..3a60dff 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-20.04"
+      dimensions: "os:Ubuntu-22.04"
       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-20.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.r8.ci"
       exe {
         cipd_package: "infra_internal/recipe_bundles/chrome-internal.googlesource.com/chrome/tools/build"
diff --git a/infra/config/global/main.star b/infra/config/global/main.star
index eb4ad17..49592dc 100755
--- a/infra/config/global/main.star
+++ b/infra/config/global/main.star
@@ -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(jammy=False),
+    dimensions = get_dimensions(jammy=True),
 )
 
 r8_tester_with_default(