Update scale-info to 2.11.6 (#6681)

# Description

Updates scale-info to from 2.11.5 2.11.6, so that generated code is
annotated with `allow(deprecated)`
Pre-requisite for #6312

Author: pkhry

Cargo.lock

@@ -1197,7 +1197,7 @@ sc-tracing-proc-macro = { path = "substrate/client/tracing/proc-macro", default-
 sc-transaction-pool = { path = "substrate/client/transaction-pool", default-features = false }
 sc-transaction-pool-api = { path = "substrate/client/transaction-pool/api", default-features = false }
 sc-utils = { path = "substrate/client/utils", default-features = false }
-scale-info = { version = "2.11.1", default-features = false }
+scale-info = { version = "2.11.6", default-features = false }
 schemars = { version = "0.8.13", default-features = false }
 schnellru = { version = "0.2.3" }
 schnorrkel = { version = "0.11.4", default-features = false }