Upgrade aetest to go122

Signed-off-by: kennethye1 <kennethye1@hotmail.com>
diff --git a/aetest/instance_vm.go b/aetest/instance_vm.go
index 1f36bbe..c2685e8 100644
--- a/aetest/instance_vm.go
+++ b/aetest/instance_vm.go
@@ -275,7 +275,7 @@
 const appYAMLTemplate = `
 application: %s
 version: 1
-runtime: go111
+runtime: go122
 
 handlers:
 - url: /.*