Add unsupported sandbox features to kubler.conf

Author: edannenberg

kubler.conf

@@ -56,7 +56,7 @@ DEFAULT_BUILDER='kubler/bob'
 
 BOB_GENTOO_MIRRORS="${MIRROR}"
 
-BOB_FEATURES="${BOB_FEATURES:--parallel-fetch nodoc noinfo noman binpkg-multi-instance}"
+BOB_FEATURES="${BOB_FEATURES:--parallel-fetch nodoc noinfo noman binpkg-multi-instance -ipc-sandbox -network-sandbox -pid-sandbox}"
 BOB_EMERGE_DEFAULT_OPTS="${BOB_EMERGE_DEFAULT_OPTS:--b -k --binpkg-respect-use=y}"
 
 # Timezone for build containers