Use mktemp for the output file
@@ -86,7 +86,7 @@ fi
# later use. Note that we exit immediately on failure (under set -e), so we `tee` stdout, but
# allow errors to be surfaced in the Actions log.
PULUMI_COMMAND="pulumi $*"
-OUTPUT_FILE="/tmp/out.txt"
+OUTPUT_FILE=$(mktemp)
echo "#### :tropical_drink: \`$PULUMI_COMMAND\`"
bash -c "$PULUMI_COMMAND" | tee $OUTPUT_FILE
EXIT_CODE=${PIPESTATUS[0]}
