scripts: Update scripts/bugzilla
    
    Raw copy from [1] a7c324041175a4157823bc2332a046cc2a54d105.
    
    To access the REST API add
    
    	[apibugzilla.suse.com]
    	api_key = your_api_key
    
    to ~/.bugzillarc
    
    [1] https://github.com/python-bugzilla/python-bugzilla