Bump untrusted from 0.6.2 to 0.7.0 (#5194)

Bumps [untrusted](https://github.com/briansmith/untrusted) from 0.6.2 to 0.7.0.
- [Release notes](https://github.com/briansmith/untrusted/releases)
- [Commits](https://github.com/briansmith/untrusted/commits)

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

core/Cargo.toml

@@ -72,7 +72,7 @@ solana-vote-signer = { path = "../vote-signer", version = "0.17.0" }
 sys-info = "0.5.7"
 tokio = "0.1"
 tokio-codec = "0.1"
-untrusted = "0.6.2"
+untrusted = "0.7.0"
 
 # reed-solomon-erasure's simd_c feature fails to build for x86_64-pc-windows-msvc, use pure-rust
 [target.'cfg(windows)'.dependencies]