chore: bump rustc_version from 0.2.3 to 0.4.0 (#17854)

* chore: bump rustc_version from 0.2.3 to 0.4.0

Bumps [rustc_version](https://github.com/Kimundi/rustc-version-rs) from 0.2.3 to 0.4.0.
- [Release notes](https://github.com/Kimundi/rustc-version-rs/releases)
- [Commits](https://github.com/Kimundi/rustc-version-rs/compare/v0.2.3...v0.4.0)

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

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

* Make versions consistent

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

ledger/Cargo.toml

@@ -77,7 +77,7 @@ solana-account-decoder = { path = "../account-decoder", version = "=1.8.0" }
 solana-stake-program = { path = "../programs/stake", version = "=1.8.0" }
 
 [build-dependencies]
-rustc_version = "0.2"
+rustc_version = "0.4"
 
 [lib]
 crate-type = ["lib"]