SAR-149 Renamed class 'transaction -> 'Transaction' according to the python naming conventions.

src/ska/logging/__init__.py

@@ -16,7 +16,7 @@ from .configuration import (
     get_default_formatter,
 )
 from .transactions import (
-    transaction,
+    Transaction as transaction,
 )
 
 

src/ska/logging/transactions.py

@@ -9,7 +9,7 @@ from typing import Mapping, Text
 
 from ska.skuid.client import SkuidClient, get_local_transaction_id
 
-class transaction:
+class Transaction:
     """Transaction context handler.
 
      Provides: