Update dependency pyln-client to v25.9.1 (#209)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements.txt

@@ -2,4 +2,4 @@ lnd-grpc == 0.4.0
 ollama ==0.6.0
 flask ==3.1.2
 ldk-garbagecollected==0.0.125.0
-pyln-client==25.9 
+pyln-client==25.9.1