update nixpkgs

bitcoin: 30.0 -> 30.2
bitcoind: 30.0 -> 30.2
bitcoind-knots: 29.2.knots20251110 -> 29.3.knots20260210
btcpayserver: 2.2.1 -> 2.3.4
clightning: 25.09.2 -> 25.12.1
elementsd: 23.2.4 -> 23.3.2
lnd: 0.19.3-beta -> 0.20.1-beta

lnd 0.20 makes its chain notifier subsystem ready later in startup
than its RPC server. lightning-loop and lightning-pool both subscribe
to chain notifications right after dialing lnd, which fails before
the notifier is up and crashes the daemon. Add a 5s ExecStartPre
sleep to both services as a temporary workaround.

pkgs/clnrest/default.nix

@@ -11,7 +11,7 @@ rustPlatform.buildRustPackage rec {
 
   inherit (clightning) src;
 
-  cargoHash = "sha256-2xOLwj42Ua85+kn73y+5q3YmzKYMCjxLlq/UrYjiZv0=";
+  cargoHash = "sha256-SjGvKeDBZzbn4TR2nbGHb3XAon0Dv4KtSlkzX+eji8c=";
 
   depsExtraArgs = {
     nativeBuildInputs = [ unzip ];