Add logfile size upload limit to the reportportal plugin

[kkaarreell]

Pull Request Checklist

• implement the feature
• modify the json schema
• include a release note

[happz]

Would it be useful to submit at least an abridged version of the log, with the "too long, had to cut" header? With the proposed code, user gets a note and nothing more, while even a shortened log might bring at least some value.

[psss]

Thanks for adding this! Looks good, only we should also update the schema to add the newly supported option. Also, it might be worth at least a short release note?

[psss]

Missing schema update, release note, open question, moving to 1.38.

[kkaarreell]

@psss @happz @martinhoyer Hi, I did some updates in the script so please review it whether it makes sense. I have decided to introduce separate limit for traceback log as this is the input for RP AutoAnalysis and I believe that it doesn't make sense to match 1MB logs.