Set upper bound for poetry due to dulwich dependency breaking py3.9 (#1521)

See python-poetry/poetry#10615

Reproduced, fixed and tested locally with `pipx install "poetry<=2.2.0"`

Signed-off-by: Elliot Gunton <[email protected]>

Author: elliotgunton

.github/workflows/pre-release.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Install base dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install poetry
+          python -m pip install "poetry<=2.2.0" twine
       - name: Bump version number
         run: poetry version ${{ github.event.release.tag_name }}
       - name: Build and publish

.github/workflows/publish.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Install base dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install poetry twine
+          python -m pip install "poetry<=2.2.0" twine
       - name: Bump version number
         run: poetry version ${{ github.event.release.tag_name }}
       - name: Build and publish