Add support for `uv.lock` and `poetry.lock` for dependency lock

### 📋 Description

As the title says. Since a `Pipfile.lock` is already available, I think there should be one for poetry and uv.

### 🔗 Data

The same way you get it from `Pipfile.lock`. they are the same format (`toml`), so it should be easy to handle it.

### 🎤 Motivation

For those who have moved away from Pipenv, but still want the badge.

Start by locating the existing Pipfile.lock handling and the code path that produces its dependency-lock badge. Compare the data needed from uv.lock and poetry.lock, then confirm that both formats produce the same badge output and add or update the relevant tests. Done means users of either lock file can obtain the badge without relying on Pipenv.

Written by the indexing model from the issue text.