Fix Pylint configuration warning

There is a warning in pylint:
```
pylint: Command line or configuration file:1: UserWarning: 'Exception' is not a proper value for the 'overgeneral-exceptions' option. Use fully qualified name (maybe 'builtins.Exception' ?) instead. This will cease to be checked at runtime when the configuration upgrader is released.
```

Signed-off-by: Hanwen <[email protected]>

Author: hanwen-cluster

awsbatch-cli/.pylintrc

@@ -582,4 +582,4 @@ min-public-methods=2
 
 # Exceptions that will emit a warning when being caught. Defaults to
 # "Exception".
-overgeneral-exceptions=Exception
+overgeneral-exceptions=builtins.Exception

cli/.pylintrc

@@ -506,4 +506,4 @@ min-public-methods=2
 
 # Exceptions that will emit a warning when being caught. Defaults to
 # "Exception".
-overgeneral-exceptions=Exception
+overgeneral-exceptions=builtins.Exception