Parameter to truncate/ start empty or delete the diagnostic file upon new sqlpackage run

**Is your feature request related to a problem? Please describe.**
When running sqlpackage action with export and the diagnostic file. For D365FO exports a file of more then 1 GB is created. The file is not deleted or emptied on a new run..so the file continuous to grow.

**Describe the solution you'd like**
Add a parameter to truncate or delete the file instead of appending only data to it.

**Describe alternatives you've considered**
Parameter to append or start new empty file.

No source file or test is named in the issue. Start by locating sqlpackage's diagnostic-file handling and verify how a new run currently appends; done when a parameter supports truncating, deleting, or appending the diagnostic file as selected.

Written by the indexing model from the issue text.