Upgrade docker in behat test docker image

stepup/tests/Dockerfile

@@ -1,4 +1,15 @@
 FROM ghcr.io/openconext/openconext-basecontainers/php72-apache2-node16-composer2:latest
-RUN apt-get update && \ 
-  apt-get install -y docker.io mariadb-client 
+RUN apt-get update && \
+  apt-get install -y mariadb-client && \
+  apt-get install -y ca-certificates curl && \
+  install -m 0755 -d /etc/apt/keyrings && \
+  curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc && \
+  chmod a+r /etc/apt/keyrings/docker.asc && \
+  echo \
+  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
+  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
+  tee /etc/apt/sources.list.d/docker.list > /dev/null && \
+  apt-get update &&  \
+  apt install -y docker-ce docker-ce-cli containerd.io
+
 WORKDIR /config/tests/behat