Bump handlebars to 6.3

Author: ipetkov

Cargo.lock

@@ -114,7 +114,7 @@ lru = { version = "0.16", optional = true }
 serde_cbor = { version = "0.11.2", optional = true }
 sha2 = { version = "0.10.8", optional = true }
 zxcvbn = { version = "2.2.2", optional = true }
-handlebars = { version = "5.1.2", optional = true }
+handlebars = { version = "6.3", optional = true }
 schemars = { version = "1", optional = true }
 
 [dev-dependencies]