feat: enable otel logging, fail job when errors raised by otel

[Bruno-DaSilva]

This MR adds two things:

1. debug diagnostic logging when action is set to debug more, info logs otherwise (previously not logged at all)
2. hook into the globalErrorHandler provided by the otel library to set the action as failed when there are any errors

This should make debugging configuration issues with the action (and help catching those issues in the first place).

[nikordaris]

This feels like a mix of concerns. There is otel logging happening with GitHub core logging. Can we separate the concerns? I understand the original issues is GitHub not logging a failure, let's just focus on that?

[wolverian]

Resurrecting this a bit because I have a possibly stupid question. Shouldn't setting the environment variable OTEL_LOG_LEVEL=debug do the same thing as this, or am I confused? I can't even find the documentation for OTEL_LOG_LEVEL anymore, so maybe it's unspecified?