build(deps): bump incrementalmerkletree from 0.3.0 to 0.3.1 (#6258)

Bumps [incrementalmerkletree](https://github.com/zcash/incrementalmerkletree) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/zcash/incrementalmerkletree/releases)
- [Changelog](https://github.com/zcash/incrementalmerkletree/blob/incrementalmerkletree-v0.3.1/CHANGELOG.md)
- [Commits](https://github.com/zcash/incrementalmerkletree/compare/incrementalmerkletree-v0.3.0...incrementalmerkletree-v0.3.1)

---
updated-dependencies:
- dependency-name: incrementalmerkletree
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -1948,9 +1948,9 @@ dependencies = [
 
 [[package]]
 name = "incrementalmerkletree"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "068c5bdd31006d55536655cf1eb0d22d84d28de7c725b419480fd5d005c83216"
+checksum = "d5ad43a3f5795945459d577f6589cf62a476e92c79b75e70cd954364e14ce17b"
 dependencies = [
  "serde",
 ]

zebra-chain/Cargo.toml

@@ -41,7 +41,7 @@ bs58 = { version = "0.4.0", features = ["check"] }
 byteorder = "1.4.3"
 equihash = "0.2.0"
 group = "0.12.0"
-incrementalmerkletree = "0.3.0"
+incrementalmerkletree = "0.3.1"
 jubjub = "0.9.0"
 lazy_static = "1.4.0"
 primitive-types = "0.11.1"