feat: added pre-cooked dependenvies images

images/sheeprl/Dockerfile

@@ -0,0 +1,16 @@
+ARG on
+FROM python:${on}
+
+RUN apt-get -qy update && \
+    apt-get -qy install libgl1 && \
+    rm -rf /var/lib/apt/lists/* && \
+    apt-get -qy clean
+
+ENV LANG=C.UTF-8 LC_ALL=C.UTF-8
+
+# Copy arena to tmp since bind-mount is read-only and pip doesn't support
+# out-of-tree builds.
+RUN --mount=target=/usr/src/arena,type=bind,source=. \
+    cp -r /usr/src/arena /tmp/arena && \
+    pip install /tmp/arena[sheeprl] && \
+    rm -rf /tmp/arena

images/sheeprl/on.arg

@@ -0,0 +1,3 @@
+3.10-bullseye
+3.9-bullseye
+3.8-bullseye