fix: docker CMD quotation problem

docker/Dockerfile

@@ -18,9 +18,10 @@ WORKDIR /app
 CMD [ \
     "/usr/bin/wait-for-it", "postgres:5432", "--timeout=45", "--strict", \
     "--", \
+    "sh", "-c" \
     # might use exact migration hash here instead of upgrading to the latest "heads"
-    "alembic", "upgrade", "heads", \ 
+    "alembic upgrade heads \
-    "&&", \
+    && \
-    "gunicorn", "--workers=2", "--worker-class=uvicorn.workers.UvicornWorker", "--bind=0.0.0.0:8000", \
+    gunicorn --workers=2 --worker-class=uvicorn.workers.UvicornWorker --bind=0.0.0.0:8000 \
-    "geodata.main:app", "--root-path=/api/v1" \
+    geodata.main:app --root-path=/api/v1" \
 ]