Reduce vertical padding for session list view rows (8px->4px)

- Bump 1.22.7, SW cache v38->v39

simtrace2_pysniff/__init__.py

@@ -6,7 +6,7 @@ from .gsmtap import GsmtapSender, GsmtapReceiver
 from .pcap import PcapWriter
 from .dump import FileDumper, format_message
 
-__version__ = '1.22.6'
+__version__ = '1.22.7'
 __all__ = [
     'SniffSession',
     'DeviceDisconnected',