chore: try workflow with poetry 1.5.1

Author: runemalm

.github/workflows/run-unittests.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Install Poetry
         uses: abatilo/actions-poetry@v2
         with:
-          poetry-version: "2.1.4"
+          poetry-version: "1.5.1"
 
       - name: Install dependencies
         run: poetry install --with dev