Add kola test that uses a proxy and ostree

[jmarrero]

A test like this would have exposed this issue earlier:
coreos/fedora-coreos-tracker#1477

@dustymabe sugested using tinyproxy similar to:
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Build a container to run a proxy from and run proxy

podman build -t tinyproxy -f - <<EOF
FROM registry.fedoraproject.org/fedora:37
RUN dnf install -y tinyproxy
# Allow requests from all hosts
RUN sed -i 's|^Allow 127.0.0.1$|Allow 0.0.0.0/0|' /etc/tinyproxy/tinyproxy.conf
# Remove logfile specification so it will log to stdout
RUN sed -i 's|^LogFile|#LogFile|' /etc/tinyproxy/tinyproxy.conf
RUN mkdir -p /run/tinyproxy
CMD [ "/usr/bin/tinyproxy", "-d" ]
EOF

After build we can run with:

sudo firewall-cmd --add-port=8888/tcp
podman run --rm -it --name tinyproxy --publish 8888:8888 tinyproxy

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