fix pip install

MarleneKress79789 · MarleneKress79789 · commit bad80e53a515 · 2022-05-17T11:14:44.000+02:00
diff --git a/tests/Dockerfile b/tests/Dockerfile
@@ -8,6 +8,7 @@ RUN apt-get -y update && \
         openjdk-11-jdk \
         locales \
         python3.8-venv \
+        python3-pip \
         unixodbc \
         unixodbc-dev \
         curl \
