Bump ed25519-zebra from 0.1.0 to 0.2.0

Bumps [ed25519-zebra](https://github.com/ZcashFoundation/ed25519-zebra) from 0.1.0 to 0.2.0.
- [Release notes](https://github.com/ZcashFoundation/ed25519-zebra/releases)
- [Changelog](https://github.com/ZcashFoundation/ed25519-zebra/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ZcashFoundation/ed25519-zebra/compare/0.1.0...0.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -327,9 +327,9 @@ dependencies = [
 
 [[package]]
 name = "ed25519-zebra"
-version = "0.1.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dd3113b0008c4cc23688f2a0b9bbffe08d71ade8db480b43e1635c469e1f22b"
+checksum = "eff3738ad05c52762b19c1b8adfd8e1a27554820f146e90cc4d9a65a99f825af"
 dependencies = [
  "curve25519-dalek",
  "rand_core 0.5.1",

zebra-chain/Cargo.toml

@@ -16,7 +16,7 @@ sha2 = "0.8"
 futures = "0.3"
 # ZF deps
 redjubjub = "0.1"
-ed25519-zebra = "0.1"
+ed25519-zebra = "0.2"
 
 [dev-dependencies]
 proptest = "0.9"