Add "timestamps" flag to "yt" to add timestamps to transcript

[erewhon]

What this Pull Request (PR) does

Adds a "timestamps" flag to the "yt" CLI to add timestamps to transcripts. The format mirrors the input format described in pattern "create_video_chapters".

Bumps dependency on "requests" due to CVE-2024-35195 mitigation of previous version.

Related issues

closes #634

Screenshots

Example output:

[0:00:05.240000 --> 0:00:10.240000] hello good afternoon or good evening     [0:00:08.559000 --> 0:00:13.920000] wherever you are or whenever you're
[0:00:10.240000 --> 0:00:17.359000] watching this I'm
[0:00:13.920000 --> 0:00:20.240000] uh I'm just checking that
[0:00:17.359000 --> 0:00:23.320000] everything is
[0:00:20.240000 --> 0:00:25.279000] uh seems to be in order I want to make
[0:00:23.320000 --> 0:00:29.480000] sure that the