Merge bitcoin/bitcoin#28565: rpc: getaddrmaninfo followups

e6e444c06c refactor: add and use EnsureAnyAddrman in rpc (stratospher)
bf589a50a0 doc: add release notes for #27511 (stratospher)
3931e6abc3 rpc: `getaddrmaninfo` followups (stratospher)

Pull request description:

  - make `getaddrmaninfo` RPC public since it's not for development purposes only and regular users might find it useful. [#26988 (comment)](https://github.com/bitcoin/bitcoin/pull/26988#issuecomment-1738371584)
  - add missing `all_networks` key to RPC help. [#27511 (comment)](https://github.com/bitcoin/bitcoin/pull/27511#discussion_r1335084087)
  - fix clang format spacing
  - add and use `EnsureAddrman` in RPC code. [#27511 (comment)](https://github.com/bitcoin/bitcoin/pull/27511#discussion_r1331501491)

ACKs for top commit:
  0xB10C:
    Code Review re-ACK e6e444c06c
  theStack:
    Code-review ACK e6e444c06c
  pablomartin4btc:
    tested ACK e6e444c06c

Tree-SHA512: c14090d5c64ff15e92d252578de2437bb2ce2e1e431d6698580241a29190f0a3528ae5b013c0ddb76a9ae538507191295c37cab7fd93469941cadbde44587072

test/functional/rpc_net.py

@@ -371,11 +371,6 @@ class NetTest(BitcoinTestFramework):
         self.log.info("Test getaddrmaninfo")
         node = self.nodes[1]
 
-        self.log.debug("Test that getaddrmaninfo is a hidden RPC")
-        # It is hidden from general help, but its detailed help may be called directly.
-        assert "getaddrmaninfo" not in node.help()
-        assert "getaddrmaninfo" in node.help("getaddrmaninfo")
-
         # current count of ipv4 addresses in addrman is {'new':1, 'tried':1}
         self.log.info("Test that count of addresses in addrman match expected values")
         res = node.getaddrmaninfo()