[test] sending invalid msgs to node with bloomfilters=0 causes disconnect

-A node with bloomfilters disabled should disconnect peers that send
msg_mempool, msg_filterload, or msg_filteradd.
-Renamed the test because it now has a wider scope and msg_mempool's
actual functionality makes more sense for p2p_filter.py.

test/functional/test_runner.py

@@ -164,7 +164,7 @@ BASE_SCRIPTS = [
     'wallet_keypool.py',
     'wallet_keypool.py --descriptors',
     'wallet_descriptor.py',
-    'p2p_mempool.py',
+    'p2p_nobloomfilter_messages.py',
     'p2p_filter.py',
     'rpc_setban.py',
     'p2p_blocksonly.py',