fix(container): write the browser profile as root

containers/Dockerfile

@@ -118,6 +118,7 @@ ENV AGENT_BROWSER_USER_AGENT="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36
 ENV AGENT_BROWSER_ARGS="--disable-blink-features=AutomationControlled,--no-first-run,--no-default-browser-check,--lang=en-US"
 ENV AGENT_BROWSER_SCREENSHOT_DIR=/workspace/.agent-browser-screenshots
 ENV AGENT_BROWSER_IDLE_TIMEOUT_MS=180000
+USER root
 RUN set -eu; \
     { \
         for var in AGENT_BROWSER_EXECUTABLE_PATH AGENT_BROWSER_USER_AGENT \
@@ -130,6 +131,7 @@ RUN set -eu; \
     install -m 0644 /tmp/agent-browser.sh /etc/profile.d/agent-browser.sh; \
     rm /tmp/agent-browser.sh; \
     env -i bash -lc 'test "${AGENT_BROWSER_IDLE_TIMEOUT_MS}" = "180000"'
+USER pentester
 RUN /home/pentester/.npm-global/bin/agent-browser doctor --offline --quick
 
 RUN set -eux; \