Update lightning lib, on-chain balance shouldn't be lightmoney (#3945)

BTCPayServer/Controllers/LnurlAuthService.cs

@@ -75,7 +75,7 @@ namespace BTCPayServer
                 CreationStore.Remove(userId, out _);
                 return true;
             }
-            catch (Exception e)
+            catch (Exception)
             {
                 return false;
             }