Bump arrayvec from 0.5.2 to 0.7.2

Bumps [arrayvec](https://github.com/bluss/arrayvec) from 0.5.2 to 0.7.2.
- [Release notes](https://github.com/bluss/arrayvec/releases)
- [Changelog](https://github.com/bluss/arrayvec/blob/master/CHANGELOG.md)
- [Commits](bluss/arrayvec@0.5.2...0.7.2)

---
updated-dependencies:
- dependency-name: arrayvec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -15,7 +15,7 @@ polkadot-node-subsystem = {path = "../../subsystem" }
 polkadot-node-primitives = { path = "../../primitives" }
 polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 polkadot-node-network-protocol = { path = "../../network/protocol" }
-arrayvec = "0.5.2"
+arrayvec = "0.7.2"
 indexmap = "1.9.1"
 parity-scale-codec = { version = "3.3.0", default-features = false, features = ["derive"] }
 thiserror = "1.0.31"