Also wait for python-api to be up

Author: PGijsbers

.github/workflows/tests.yml

@@ -23,7 +23,7 @@ jobs:
       # start all services, which kickstarts Elastic Search and building indices.
       # But since those two steps are independent, we can parallelize them to save time.
       - run: |
-          { docker compose build python-api; docker compose up -d python-api; } &
+          { docker compose build python-api; docker compose up -d --wait python-api; } &
           docker compose up -d --wait php-api
       - run: docker container ls && docker image ls
       - run: docker exec python-api python -m pytest -xv -m "php"