Update multihash requirement from 0.15 to 0.16 (#51)

* Update multihash requirement from 0.15 to 0.16

Updates the requirements on [multihash](https://github.com/multiformats/rust-multihash) to permit the latest version.
- [Release notes](https://github.com/multiformats/rust-multihash/releases)
- [Commits](multiformats/rust-multihash@v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: multihash
  dependency-type: direct:production
...

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

* CHANGELOG: Add entry

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Max Inden <[email protected]>

Author: dependabot[bot]

CHANGELOG.md

@@ -4,8 +4,11 @@
 
 - Update to `multihash` `v0.15` (see [PR 50]).
 
+- Update to `multihash` `v0.16` (see [PR 51]).
+
 [PR 48]: https://github.com/multiformats/rust-multiaddr/pull/48
 [PR 50]: https://github.com/multiformats/rust-multiaddr/pull/50
+[PR 50]: https://github.com/multiformats/rust-multiaddr/pull/51
 
 
 # 0.13.0 [2021-07-08]

Cargo.toml

@@ -17,7 +17,7 @@ arrayref = "0.3"
 bs58 = "0.4.0"
 byteorder = "1.3.1"
 data-encoding = "2.1"
-multihash = { version = "0.15", default-features = false, features = ["std", "multihash-impl", "identity"] }
+multihash = { version = "0.16", default-features = false, features = ["std", "multihash-impl", "identity"] }
 percent-encoding = "2.1.0"
 serde = "1.0.70"
 static_assertions = "1.1"