Changes to List miner's agents

added the new selected_after_close enum value to the agents/items/latest_version/anyOf[subschema #1: AgentLatestVersion]/pin_disabled_reason/anyOf[subschema #1] response property for the response status 200

added the new selected_after_close enum value to the agents/items/latest_version/anyOf[subschema #1: AgentLatestVersion]/selection_fallback_reason/anyOf[subschema #1] response property for the response status 200

added the optional property selected_agent_id to the response with the 200 status

added the optional property selected_agent_version_id to the response with the 200 status

the endpoint scheme security SessionBearer was added to the API

the endpoint scheme security X-Hotkey AND X-Timestamp AND X-Nonce AND X-Signature was added to the API