fix: set panic hook for plugin code
Summary
- fix: set panic hook for plugin code
Now panics from plugin code are handled the same way panics from picodata code, that is they log the backtrace to the tarantool logger and then abort the process.
- feat: upon panic dump the backtrace to file
In case of unexpected panic in integration tests we will now see something like this:

- fix: forgot to include error message in the error message
- Close #1196 (closed)
- Cherry-pick to: 24.6
- Docs follow-up: not necessary
Edited by Georgy Moshkin