tests: Fix support of Dulwich < 0.20
It expects the path to be a string rather than a pathlib object.
Dulwich 0.19 is in Debian buster so we need to support it.
Test Plan
It Works On My Machine ©
Migrated from D5942 (view on Phabricator)
It expects the path to be a string rather than a pathlib object.
Dulwich 0.19 is in Debian buster so we need to support it.
It Works On My Machine ©
Migrated from D5942 (view on Phabricator)