Ci checks

Enables some sanity checks in the CI:

• Make sure packages have a pyproject.toml file
• Runs pre-commit checks if they exist

.pre-commit-config.yaml

@@ -15,6 +15,7 @@ repos:
     rev: 3.9.0
     hooks:
       - id: flake8
+        exclude: bob/devtools/templates/setup\.py
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v3.4.0
     hooks: