* wip spiff lib upgrade
* unit and script tests are now passing w/ burnettk
* tests and pre-commit are passing
* pass None in as external_context as named param instead of creating a variable w/ burnettk
* some extra debugging in case bpmn_xml_file_contents is empty w/ burnettk
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Co-authored-by: burnettk <burnettk@users.noreply.github.com>
Co-authored-by: jasquat <jasquat@users.noreply.github.com>