Hard require poetry >=2.0.1 in CI

Author: LaurenceWarne

.github/workflows/tests.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Install Poetry
         run: |
-          python -m pip install poetry
+          python -m pip install 'poetry>=2.0.1'
 
       - name: Run tests on ${{ matrix.os }}
         run: nox --non-interactive --error-on-missing-interpreter --session "tests-${{ matrix.python-version }}" -- --full-trace