refactor: 🔨 ignore justfile when listing TODO items (#181)

# Description

Since the justfile will always have at least two TODO items (from the
list todo recipe).

This PR needs a quick review.

## Checklist

- [x] Ran `just run-all`

Co-authored-by: Signe Kirk Brødbæk <40836345+signekb@users.noreply.github.com>

Author: lwjohnst86

template/justfile.jinja

@@ -14,7 +14,7 @@ run-all: install-deps format-python _checks _tests _builds
 
 # List all TODO items in the repository
 list-todos:
-  grep -R -n --exclude="*.code-snippets" "TODO" *
+  grep -R -n --exclude="*.code-snippets" --exclude="justfile" "TODO" *
 
 # Install the pre-commit hooks
 install-precommit: