Update BTCPay Server to v1.11.6 (#789)

Co-authored-by: nmfretz <nmfretz@gmail.com>

btcpay-server/docker-compose.yml

@@ -31,7 +31,7 @@ services:
       NBXPLORER_BTCHASTXINDEX: 1
 
   web:
-    image: btcpayserver/btcpayserver:1.11.4@sha256:163aae8a106f55f58768933212912b4bd0d7e8e8d29cf5f889d7075b6f646b7e
+    image: btcpayserver/btcpayserver:1.11.6@sha256:34f9ee7c5d696a1960868b6abfdd197891c9044942e98d0dc9247365be75f2dc
     user: "1000:1000"
     restart: on-failure
     stop_grace_period: 1m

btcpay-server/umbrel-app.yml

@@ -2,7 +2,7 @@ manifestVersion: 1
 id: btcpay-server
 category: bitcoin
 name: BTCPay Server
-version: "1.11.4"
+version: "1.11.6"
 tagline: Accept Bitcoin payments with 0 fees & no 3rd party
 description: >-
   BTCPay Server is a payment processor that allows you to receive
@@ -34,8 +34,14 @@ path: ""
 defaultUsername: ""
 defaultPassword: ""
 releaseNotes: >
-  This update from version 1.11.1 to 1.11.4 includes many bug fixes and improvements, as well as a new feature
-  to display wallet balance in default currency in the on-chain wallet navigation.
+  Upgrading from version 1.11.4 to 1.11.6 introduces important updates especially beneficial for 
+  servers with high user traffic, mitigating potential server crash issues and enhancing user 
+  interface and experience across the platform. Alongside numerous bug fixes, this update 
+  brings improvements such as refined receipt info display and currency rate recommendations. 
+  New features and improvements from version 1.11.5, including the addition of payout reports, 
+  custom label deletion in wallets, and enhanced dashboard and login functionalities, are 
+  integrated. Update is recommended to leverage these enhancements and ensure system stability.
+
 
 
   Full release notes can be found at https://github.com/btcpayserver/btcpayserver/releases.