Split install and run commands in github actions (#3112)

... makes looking at the checks a little easier in case they fail

---------

Co-authored-by: veeck <michael@veeck.de>

.github/workflows/automated-tests.yaml

@@ -27,11 +27,13 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           cache: "npm"
-      - name: "Install dependencies and run tests"
+      - name: "Install dependencies"
+        run: |
+          npm run install-mm:dev
+      - name: "Run tests"
         run: |
           Xvfb :99 -screen 0 1024x768x16 &
           export DISPLAY=:99
-          npm run install-mm:dev
           touch css/custom.css
           npm run test:prettier
           npm run test:js