Test for docker workflow (#4014)

* Test for docker workflow

* Ensure yaml is installed in the local env

* Install the right package

* Debug yaml path

* Check data directory first

* Let them run

* More debug info

* Try reverting a recent change

* Disable test

* Check envvar directory

* Remove debug prints

* Re-enable unit test

* Use os.getenv

* Prevent docker workflow from running on pull requests

* Re-add InvenTree.helpers import

.github/workflows/docker.yaml

@@ -38,10 +38,10 @@ jobs:
         uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984 # pin@v4.3.0
         with:
           python-version: ${{ env.python_version }}
-          cache: 'pip'
       - name: Version Check
         run: |
           pip install requests
+          pip install pyyaml
           python3 ci/version_check.py
           echo "git_commit_hash=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
           echo "git_commit_date=$(git show -s --format=%ci)" >> $GITHUB_ENV
@@ -55,10 +55,6 @@ jobs:
           docker-compose run inventree-dev-server invoke setup-dev
           docker-compose up -d
           docker-compose run inventree-dev-server invoke wait
-      - name: Run Unit Tests
-        run: |
-          docker-compose run inventree-dev-server invoke test
-          docker-compose down
       - name: Check Data Directory
         # The following file structure should have been created by the docker image
         run: |
@@ -71,6 +67,10 @@ jobs:
           test -f data/config.yaml
           test -f data/plugins.txt
           test -f data/secret_key.txt
+      - name: Run Unit Tests
+        run: |
+          docker-compose run inventree-dev-server invoke test
+          docker-compose down
       - name: Set up QEMU
         if: github.event_name != 'pull_request'
         uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18 # pin@v2.1.0