build(deps): bump solana-program-entrypoint from 3.1.0 to 3.1.1

Bumps [solana-program-entrypoint](https://github.com/anza-xyz/solana-sdk) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/anza-xyz/solana-sdk/releases)
- [Commits](https://github.com/anza-xyz/solana-sdk/compare/cpi@v3.1.0...bn254@v3.1.1)

---
updated-dependencies:
- dependency-name: solana-program-entrypoint
  dependency-version: 3.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

program/Cargo.toml

@@ -19,7 +19,7 @@ arrayref = "0.3.9"
 solana-account-info = "3.0.0"
 solana-cpi = "3.0.0"
 solana-msg = "3.0.0"
-solana-program-entrypoint = "3.0.0"
+solana-program-entrypoint = "3.1.1"
 solana-program-error = "3.0.0"
 solana-pubkey = "3.0.0"
 solana-system-interface = { version = "2", features = ["bincode"] }