add log10 tags of the completions into the output

[wenzhe-log10]

tags are added to the output. Showing completion_id and tags only for an output jsonl file using jq

# cmd
❯ log10 completions benchmark_models --ids list_comp_ids_summ_test.json --models=gpt-4o-mini -f benchmark_summ_test_gpt4o_mini_tags.jsonl

❯ jq '{completion_id, tags}' benchmark_summ_test_gpt4o_mini_tags.jsonl
{
  "completion_id": "25572f3c-c2f1-45b0-9de8-d96be4c4e544",
  "tags": [
    "summ_test"
  ]
}
{
  "completion_id": "25572f3c-c2f1-45b0-9de8-d96be4c4e544",
  "tags": [
    "summ_test"
  ]
}
{
  "completion_id": "06de4233-7d4b-4a45-b2c6-f31e254d40b7",
  "tags": [
    "summ_test"
  ]
}
{
  "completion_id": "06de4233-7d4b-4a45-b2c6-f31e254d40b7",
  "tags": [
    "summ_test"
  ]
}
{
  "completion_id": "d794a3e6-6a6a-410b-8bce-96f1f4be63eb",
  "tags": [
    "summ_test"
  ]
}
{
  "completion_id": "d794a3e6-6a6a-410b-8bce-96f1f4be63eb",
  "tags": [
    "summ_test"
  ]
}

[kxtran]

LGTM