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

…23471)

* 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

* revert Operations example api version