[beta] Backports (#6333)

* overflow check in addition

* add test

* Unexpose methods on UI RPC. (#6295)

* Add more descriptive error when signing/decrypting using hw wallet.

* format instant change proofs correctly

* propagate stratum submit share error upstream, fixes #6258 (#6260)

* updated jsonrpc (#6264)

* Using multiple NTP servers (#6173)

* Small improvements to time estimation.

* Allow multiple NTP servers to be used.

* Removing boxing.

* Be nice.

* Be nicer.

* Update list of servers and add reference.

* Fix dapps CSP when UI is exposed externally (#6178)

* Allow embeding on any page when ui-hosts=all and fix dev_ui

* Fix tests.

* Fix cache path when using --base-path (#6212)

* Time should not contribue to overall status. (#6276)

* v1.7.1

dapps/src/tests/helpers/mod.rs

@@ -255,11 +255,12 @@ impl Server {
 		fetch: F,
 	) -> Result<Server, http::Error> {
 		let middleware = Middleware::dapps(
-			"pool.ntp.org:123",
+			&["0.pool.ntp.org:123".into(), "1.pool.ntp.org:123".into()],
 			CpuPool::new(4),
 			remote,
 			signer_address,
 			vec![],
+			vec![],
 			dapps_path,
 			extra_dapps,
 			DAPPS_DOMAIN.into(),