scripted-diff: Use generate* from TestFramework

-BEGIN VERIFY SCRIPT-
 sed --regexp-extended -i \
     's/((self\.)?(nodes\[[^]]+\]|[a-z_]*(wallet|node)[0-9a-z_]*))\.(generate(|toaddress|block|todescriptor)(\(|, ))/self.\5\1, /g' \
     $(git grep -l generate ./test | grep -v 'test_framework/' | grep -v 'feature_rbf')
-END VERIFY SCRIPT-

test/functional/p2p_leak.py

@@ -133,7 +133,7 @@ class P2PLeakTest(BitcoinTestFramework):
         pre_wtxidrelay_peer.wait_until(lambda: pre_wtxidrelay_peer.version_received)
 
         # Mine a block and make sure that it's not sent to the connected peers
-        self.nodes[0].generate(nblocks=1)
+        self.generate(self.nodes[0], nblocks=1)
 
         # Give the node enough time to possibly leak out a message
         time.sleep(PEER_TIMEOUT + 2)