This PR fixes the issue response script.
There were a number of things preventing it from working:
- The directory name used in the GitHub Action did not match the one on
disk.
- The script has been moved accordingly
- `ts-node` does not support ESM.
- `ts-node` seems unmaintained, so I changed the script to be plain JS
that is type-checked with TypeScript.
- The data being sent to the Slack API was invalid:
- Each section block can only have a maximum of 3000 characters in the
`text` field, so we need to break up the issue list across multiple
sections.
- We needed to escape `&`, `<`, and `>` characters in the issue titles.
Release Notes:
- N/A
