Merge bitcoin#21049: Add release notes for listdescriptors RPC

51f3752 Add release notes for listdescriptors RPC (Ivan Metlushko)

Pull request description:

  Original PR is bitcoin#20226

ACKs for top commit:
  jonatack:
    ACK 51f3752
  jonasschnelli:
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Tree-SHA512: e8091d01b99a3effcd6c1738e7363a44858ba9bcf6bd99bf60f2025a25db83fc8d61354ab2002365b56071b9f3693c7d534153a259b5ebc91cbcf8d13f6555f1

doc/release-notes-21049.md

@@ -0,0 +1,6 @@
+Wallet
+------
+
+- A new `listdescriptors` RPC is available to inspect the contents of descriptor-enabled wallets.
+  The RPC returns public versions of all imported descriptors, including their timestamp and flags.
+  For ranged descriptors, it also returns the range boundaries and the next index to generate addresses from. (#20226)