Bump the cargo-minor group with 2 updates

Bumps the cargo-minor group with 2 updates: [soroban-sdk](https://github.com/stellar/rs-soroban-sdk) and [bytes](https://github.com/tokio-rs/bytes).


Updates `soroban-sdk` from 21.4.0 to 21.5.0
- [Release notes](https://github.com/stellar/rs-soroban-sdk/releases)
- [Commits](stellar/rs-soroban-sdk@v21.4.0...v21.5.0)

Updates `bytes` from 1.6.1 to 1.7.1
- [Release notes](https://github.com/tokio-rs/bytes/releases)
- [Changelog](https://github.com/tokio-rs/bytes/blob/master/CHANGELOG.md)
- [Commits](tokio-rs/bytes@v1.6.1...v1.7.1)

---
updated-dependencies:
- dependency-name: soroban-sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: cargo-minor
- dependency-name: bytes
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: cargo-minor
...

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

Cargo.toml

@@ -5,7 +5,7 @@ members = [
 ]
 
 [workspace.dependencies]
-soroban-sdk = "21.1.1"
+soroban-sdk = "21.5.0"
 
 [profile.release]
 opt-level = "z"

contracts/versioning/Cargo.toml

@@ -10,7 +10,7 @@ doctest = false
 
 [dependencies]
 soroban-sdk = { workspace = true }
-bytes = "1.6.1"
+bytes = "1.7.1"
 
 [dev-dependencies]
 soroban-sdk = { workspace = true, features = ["testutils"] }