Log Message:
py-eliot: updated to 1.13.0

1.13.0

Features:

@capture_logging and MemoryLogger now support specifying a custom JSON encoder. \ 
By default they now use Eliot’s encoder. This means tests can now match the \ 
encoding used by a FileDestination.
Added support for Python 3.9.

Deprecation:

Python 3.5 is no longer supported.