chore: 🔥 remove leftover poetry.lock file (#19)

# Description

Removed the last bit of poetry from this repo. It was already using uv.

Needs a quick review.

Author: lwjohnst86

.github/CODEOWNERS

@@ -4,10 +4,9 @@
 # Ignore these so we don't get added to sync PRs
 /.github/
 /.vscode/
-/.devcontainer/
 justfile
 .editorconfig
 .gitignore
 ruff.toml
 pyproject.toml
-poetry.lock
+uv.lock