TST: Fix test_gitlab_com_123 to be independent of working dir

tests/test_issues_pylib.py

@@ -208,7 +208,7 @@ def test_gitlab_com_123():
     # Create ambiguous situation
     db.RecordType(name="TestUniquenessRecordType").insert()
 
-    f = db.File(file="__init__.py", path="__init__.py")
+    f = db.File(file=__file__, path="file.py")
     f.insert()
     f.name = "TestUniquenessRecordType"
     f.update(unique=False)