deps: bump multihash from 0.18.1 to 0.19.1

[dependabot]

Bumps multihash from 0.18.1 to 0.19.1.

Changelog

Sourced from multihash's changelog.

(2023-09-06)

Bug Fixes

• make Serde (de)serialization no_std compatible (#337) (7ad5161), closes 336#. This was a regression introduced in v0.19.0.

(2023-06-06)

⚠ BREAKING CHANGES

• the Serde serialization format changed
• split crates into multiple to isolate breaking changes
• identity hasher was removed

See the migration section below for help on upgrading.

Features

• codetable: remove identity hasher (#289) (8473e2f)
• Serde serialize Multihash in bytes representation (#302) (1023226)

Bug Fixes

• avoid possible panic in error handling code (#277) (5dc1dfa)
• don't panic on non minimal varints (#291) (6ef6040), closes #282
• expose MultihashDigest trait in codetable (#304) (50b43cd)

Code Refactoring

• split crates into multiple to isolate breaking changes (#272) (954e523)

Migrating

When upgrading to v0.19, consider the following:

• Code has moved from multihash::Code to multihash_codetable::Code. It's strongly recommended to define your own code table using multihash_derive. Check the custom codetable example on how to use it. For the simplest migration, use the multihash_codetable::Code.

  Before

  use multihash::{Code, MultihashDigest};
  fn main() {
  let hash = Code::Sha2_256.digest(b"hello, world!");
  println!("{:?}", hash);
  }

... (truncated)

Commits

• 8adf8c0 chore: prepare 0.19.1 release (#341)
• 1a33810 chore(deps): bump actions/checkout from 3 to 4 (#340)
• 7ad5161 fix: make Serde (de)serialization no_std compatible (#337)
• 93ffba3 chore(deps): bump actions/checkout from 3 to 4 (#339)
• 452a933 chore: Update .github/dependabot.yml [skip ci]
• 9b8d623 chore: switch sha-1 package name to sha1 (#328)
• f78d455 chore: update github actions
• 16e68d8 chore: prepare 0.19 release (#324)
• abfcd94 docs: mention identity example in migration guide (#323)
• 4386c97 chore(deps): update criterion requirement from 0.4.0 to 0.5.1 (#313)
• Additional commits viewable in compare view

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