Create venv, install deps

Author: PastelStorm

.github/workflows/ci.yml

@@ -68,8 +68,10 @@ jobs:
         key: ci-venv-${{ env.PIPELINE_FAMILY }}-${{ hashFiles('requirements/test.txt') }}
     - name: Run core tests
       run: |
+        python${{ env.PYTHON_VERSION }} -m venv .venv
         source .venv/bin/activate
         sudo apt-get update && sudo apt-get install --yes poppler-utils libreoffice
+        make install-test
         make install-pandoc
         sudo add-apt-repository -y ppa:alex-p/tesseract-ocr5
         sudo apt-get install -y tesseract-ocr tesseract-ocr-kor
@@ -108,6 +110,8 @@ jobs:
         key: ci-venv-${{ env.PIPELINE_FAMILY }}-${{ hashFiles('requirements/test.txt') }}
     - name: Test Dockerfile
       run: |
+        python${{ env.PYTHON_VERSION }} -m venv .venv
+        make install-test
         source .venv/bin/activate
         make docker-build
         make docker-test