Multi Input Dialog can't display single value with static_select

[scetron]

Environment

• Python version: 3.8.13
• Nautobot version: 1.2.11
• nautobot-plugin-chatops version: 1.8

Steps to Reproduce

1. Implement a command with the multi_input_dialog, w/ one block type
2. User sends specific chat command calling multi_input_dialog
3. User submits the modal dialog with a choice selected

Expected Behavior

User submission to be received normally and rest of command to be executed

Observed Behavior

500 Server Error returned

nautobot_plugin_chatops_infoblox-nautobot-1 | [25/Aug/2022 19:30:14] "GET /health/ HTTP/1.1" 200 1762
nautobot_plugin_chatops_infoblox-nautobot-1 | Unhandled action type static_select
nautobot_plugin_chatops_infoblox-nautobot-1 | Internal Server Error: /api/plugins/chatops/slack/interaction/
nautobot_plugin_chatops_infoblox-nautobot-1 | Internal Server Error: /api/plugins/chatops/slack/interaction/
nautobot_plugin_chatops_infoblox-nautobot-1 | [25/Aug/2022 19:30:18] "POST /api/plugins/chatops/slack/interaction/ HTTP/1.1" 500 0