build(deps): bump mock_instant from 0.2.1 to 0.3.1 (#373)

Bumps [mock_instant](https://github.com/museun/mock_instant) from 0.2.1 to 0.3.1.
- [Commits](https://github.com/museun/mock_instant/commits)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -41,7 +41,7 @@ aead = "0.5.0-pre.2"
 blake2 = "0.10"
 hmac = "0.12"
 jni = { version = "0.19.0", optional = true }
-mock_instant = { version = "0.2", optional = true }
+mock_instant = { version = "0.3", optional = true }
 socket2 = { version = "0.4.7", features = ["all"], optional = true }
 thiserror = { version = "1", optional = true }