Merge bitcoin/bitcoin#30493: policy: enable full-rbf by default

590456e3f1 policy: enable full-rbf by default (Peter Todd)
195e98ea8e doc: add release notes for full-rbf (Peter Todd)

Pull request description:

  This pull request enables full rbf (mempool policy) by default. #28132 was closed recently with this [comment](https://github.com/bitcoin/bitcoin/pull/28132#issuecomment-2225369634).

  ---

  Rationale:

  - Full RBF config option was added in July 2022: https://github.com/bitcoin/bitcoin/pull/25353

  - It is used regularly: https://mempool.space/rbf#fullrbf

  - Most mining pools are using it: https://github.com/bitcoin/bitcoin/pull/28132#issuecomment-2059120917

ACKs for top commit:
  petertodd:
    ACK 590456e3f1
  instagibbs:
    reACK https://github.com/bitcoin/bitcoin/pull/30493/commits/590456e3f1043ba0680e0afec9fd7653db1098bb
  glozow:
    reACK 590456e3f1
  achow101:
    ACK 590456e3f1
  ariard:
    tested ACK 590456e3
  murchandamus:
    reACK 590456e3f1

Tree-SHA512: 83fceef9961021687e6ff979041f89be0c616f7a49cc28a5d7edf7d8ad064fcb9c0e2af0c31f4f89867a9f6dff4e40ef8ad4dbd624e7d6a4e00ac1f1c1f66c7a

test/functional/mempool_truc.py

@@ -162,7 +162,7 @@ class MempoolTRUC(BitcoinTestFramework):
         self.check_mempool([tx_v3_bip125_rbf_v2["txid"], tx_v3_parent["txid"], tx_v3_child["txid"]])
 
 
-    @cleanup(extra_args=None)
+    @cleanup(extra_args=["-mempoolfullrbf=0"])
     def test_truc_bip125(self):
         node = self.nodes[0]
         self.log.info("Test TRUC transactions that don't signal BIP125 are replaceable")