build(deps): bump solana-zk-sdk from 2.3.4 to 4.0.0

Bumps [solana-zk-sdk](https://github.com/solana-program/zk-elgamal-proof) from 2.3.4 to 4.0.0.
- [Release notes](https://github.com/solana-program/zk-elgamal-proof/releases)
- [Commits](https://github.com/solana-program/zk-elgamal-proof/commits/[email protected])

---
updated-dependencies:
- dependency-name: solana-zk-sdk
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Cargo.lock

@@ -26,7 +26,7 @@ solana-sdk-ids = "2.2.1"
 solana-security-txt = "1.1.1"
 solana-system-interface = { version = "1.0.0", features = ["bincode"] }
 solana-sysvar = { version = "2.3.0", features = ["bincode"] }
-solana-zk-sdk = "2.3.4"
+solana-zk-sdk = "4.0.0"
 spl-pod = "0.5.1"
 spl-token-confidential-transfer-proof-extraction = { version = "0.4.1" }
 

confidential-transfer/elgamal-registry/Cargo.toml

@@ -40,7 +40,7 @@ solana-sdk-ids = "2.2.1"
 solana-security-txt = "1.1.1"
 solana-sysvar = "2.3.0"
 solana-system-interface = "1.0.0"
-solana-zk-sdk = "2.3.4"
+solana-zk-sdk = "4.0.0"
 spl-elgamal-registry = { version = "0.3.0", path = "../confidential-transfer/elgamal-registry", features = ["no-entrypoint"] }
 spl-memo = { version = "6.0", features = ["no-entrypoint"] }
 spl-token-2022-interface = { version = "1.0" }