feat: allow uploading manually timestamped videos

[drake-nominal]

When dealing with videos that don't match 1:1 with the playback speed / recording speed (e.g., original video was 200fps, slowed down to 30fps for ingest into nominal), we must provide a timestamp manifest when ingesting. This takes the form of a json file, containing a single array, of all of the per-frame timestamps (in nanos since epoch).

Annoyingly, the backend requires this to come in the form of an s3 path-- this PR allows users to input a simple array of timestamps, and have it be uploaded and ingested into nominal.

Part of this PR required me to change the pydocstyle to google style-- we were already using the style-- but I was getting a crazy amount of false-positives on documented methods:

just fix
poetry run ruff check --fix
nominal/core/_multipart.py:57:5: D417 Missing argument descriptions in the docstring for `put_multipart_upload`: `chunk_size`, `f`, `filename`, `max_workers`, `mimetype`, `upload_client`
nominal/core/_multipart.py:140:5: D417 Missing argument descriptions in the docstring for `upload_multipart_io`: `chunk_size`, `f`, `file_type`, `max_workers`, `name`, `upload_client`
nominal/core/_multipart.py:180:5: D417 Missing argument descriptions in the docstring for `upload_multipart_file`: `chunk_size`, `file`, `file_type`, `max_workers`, `upload_client`
Found 3 errors.
error: Recipe `fix-imports` failed on line 37 with exit code 1