Avoid dropping is_complete column for backward compatibility

Max Brunsfeld and Antonio Scandurra created

Co-authored-by: Antonio Scandurra <antonio@zed.dev>

Change summary

crates/collab/migrations.sqlite/20221109000000_test_schema.sql                          | 1 
crates/collab/migrations/20230103200902_replace_is_completed_with_completed_scan_id.sql | 2 
2 files changed, 2 insertions(+), 1 deletion(-)

Detailed changes