Migrating to pytest (#127)

* chore: moving dependencies around, adjusting CI

* chore: installing through poetry

* chore: bumping questo and yakh

* chore: relaxing python constraint again

Author: petereon

.github/workflows/python-publish.yml

@@ -40,6 +40,7 @@ jobs:
     - name: Test with ward
       run: |
         export PYTHONPATH=$(pwd)
+        poetry run pip install -r requirements-dev.txt
         poe test
     
     - name: Install documentation dependencies

.github/workflows/python-test.yml

@@ -53,6 +53,7 @@ jobs:
     - name: Test with ward
       run: |
         export PYTHONPATH=$(pwd)
+        poetry run pip install -r requirements-dev.txt
         poe test
     - name: Typecheck the code
       run: |
@@ -100,10 +101,11 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install "poetry${{ env.POETRY_VERSION }}" poethepoet
-        poetry install --without dev
+        poetry install
     - name: Build and install the library
       run: |
         poe build
     - name: Test with ward
       run: |
+        poetry run pip install -r requirements-dev.txt
         poe test