setup: make lgbot executable

Co-Authored-By: Claude Opus 5.5 <[email protected]>

setup.sh

@@ -70,7 +70,7 @@ if [ ! -s secrets/rcon-password.txt ]; then
 else
   echo "keeping secrets/rcon-password.txt"
 fi
-chmod +x rcon tools/*.sh scripts/*.sh
+chmod +x rcon lgbot tools/*.sh scripts/*.sh
 
 say "Building the Docker image"
 docker compose build -q