Update bincode requirement from ~1.2.1 to ~1.3.1

Updates the requirements on [bincode](https://github.com/servo/bincode) to permit the latest version.
- [Release notes](https://github.com/servo/bincode/releases)
- [Commits](https://github.com/servo/bincode/commits)

Signed-off-by: dependabot[bot] <support@github.com>

yew/Cargo.toml

@@ -21,7 +21,7 @@ travis-ci = { repository = "yewstack/yew" }
 [dependencies]
 anyhow = "1"
 anymap = "0.12"
-bincode = { version = "~1.2.1", optional = true }
+bincode = { version = "~1.3.1", optional = true }
 cfg-if = "0.1"
 cfg-match = "0.2"
 console_error_panic_hook = { version = "0.1", optional = true }
@@ -124,7 +124,7 @@ serde_derive = "1"
 trybuild = "1.0"
 rustversion = "1.0"
 rmp-serde = "0.14.0"
-bincode = "~1.2.1"
+bincode = "~1.3.1"
 
 [features]
 default = ["services", "agent", "web_sys"]