Fnuarnav containerinstance microsoft.container instance 2023 05 01 (#…

…23453)

* add container security context property

* update readme tag to previous stable version

* add example with security context

* avocado fix default tag should contain all endpoints

* add back spot priority changes

* use previous stable version as default tag

* prettier fix

* use spaces

* fix error

* use spaces

* fix CI errors

* use altest api version as default for Avocado

* update host to eastus2euap endpoint to check manifest

* use old api versionf or operations

specification/containerinstance/resource-manager/Microsoft.ContainerInstance/stable/2023-05-01/examples/OperationsList.json

@@ -1,6 +1,6 @@
 {
   "parameters": {
-    "api-version": "2023-05-01"
+    "api-version": "2022-09-01"
   },
   "responses": {
     "200": {