Add cgroupfs mount to example self-test command.

Author: EtiennePerot

.vscode/settings.json

@@ -20,15 +20,19 @@
 		"gotmp",
 		"Lockdown",
 		"maxsplit",
+		"memfd",
 		"mountinfo",
 		"newcgroup",
+		"NEWNS",
 		"preexec",
 		"procs",
 		"Protip",
 		"ptrace",
 		"pydantic",
 		"rbind",
+		"RDONLY",
 		"RDWR",
+		"reexec",
 		"sandboxing",
 		"selftest",
 		"SHLVL",

docs/setup.md

@@ -76,6 +76,7 @@ $ git clone https://github.com/EtiennePerot/open-webui-code-execution && \
     --security-opt=seccomp=unconfined \
     --security-opt=apparmor=unconfined \
     --security-opt=label=type:container_engine_t \
+    --mount=type=bind,source=/sys/fs/cgroup,target=/sys/fs/cgroup,readonly=false \
     --mount=type=bind,source="$(pwd)/open-webui-code-execution",target=/selftest \
     ghcr.io/open-webui/open-webui:main \
     python3 /selftest/open-webui/tools/run_code.py --self_test