Github Actions Fix: poetry install fails for python 3.7 tests (#208)

snok/install-poetry@v1 installs the latest version of Poetry

The latest version of poetry released on 20 August 2023 (four days ago
as of this commit) which drops support for Python 3.7, causing our
github action to fail.

Until we complete #207 we need to conditionally install the last version
of poetry that supports Python 3.7 (poetry==1.5.1)

Signed-off-by: Jesse Whitehouse <[email protected]>

Author: Jesse

.github/workflows/code-quality-checks.yml

@@ -29,6 +29,7 @@ jobs:
       - name: Install Poetry
         uses: snok/install-poetry@v1
         with:
+          version: ${{ matrix.python-version == 3.7 && '1.5.1' || 'latest'  }}
           virtualenvs-create: true
           virtualenvs-in-project: true
           installer-parallel: true
@@ -80,6 +81,7 @@ jobs:
       - name: Install Poetry
         uses: snok/install-poetry@v1
         with:
+          version: ${{ matrix.python-version == 3.7 && '1.5.1' || 'latest'  }}
           virtualenvs-create: true
           virtualenvs-in-project: true
           installer-parallel: true
@@ -132,6 +134,7 @@ jobs:
       - name: Install Poetry
         uses: snok/install-poetry@v1
         with:
+          version: ${{ matrix.python-version == 3.7 && '1.5.1' || 'latest'  }}
           virtualenvs-create: true
           virtualenvs-in-project: true
           installer-parallel: true