ColabFold multimer tests fail with miniDBs

[jscgh]

New miniDBs which work for multimer tests: https://drive.google.com/file/d/10Mjt2qF1besqa7KCxRXF5YZ6nZAzt1XF/

Description of the bug

The current miniDBs for ColabFold are missing parts required for multimer runs.

Command used and terminal output

INFO:colabfold.mmseqs.search:Running mmseqs pairaln result/qdb db/uniref30_2302_db result/res_exp_realign result/res_exp_realign_pair --db-load-mode 0 --pairing-mode 0 --pairing-dummy-mode 0 --threads 1
  Input taxonomy database "db/uniref30_2302_db" is missing files:
  - db/uniref30_2302_db_mapping
  - db/uniref30_2302_db_nodes.dmp
  - db/uniref30_2302_db_names.dmp
  - db/uniref30_2302_db_merged.dmp