doc: add cli -addrinfo release note

Author: jonatack

doc/release-notes.md

@@ -132,6 +132,12 @@ Changes to Wallet or GUI related settings can be found in the GUI or Wallet sect
 Tools and Utilities
 -------------------
 
+- A new CLI `-addrinfo` command returns the number of addresses known to the
+  node per network type (including Tor v2 versus v3) and total. This can be
+  useful to see if the node knows enough addresses in a network to use options
+  like `-onlynet=<network>` or to upgrade to current and future Tor releases
+  that support Tor v3 addresses only.  (#21595)
+
 Wallet
 ------