Pin version of poetry in CI

Author: dgarros

.github/workflows/ci.yml

@@ -141,7 +141,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: "Setup environment"
         run: |
-          pipx install poetry
+          pipx install poetry==1.8.5
           poetry config virtualenvs.prefer-active-python true
           pip install invoke toml codecov
       - name: "Install Package"
@@ -192,7 +192,7 @@ jobs:
           python-version: "3.12"
       - name: "Setup environment"
         run: |
-          pipx install poetry
+          pipx install poetry==1.8.5
           poetry config virtualenvs.prefer-active-python true
           pip install invoke toml codecov
       - name: "Install Package"