Bump log from 0.4.6 to 0.4.7 (#5144)

Bumps [log](https://github.com/rust-lang/log) from 0.4.6 to 0.4.7.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang-nursery/log/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/log/compare/0.4.6...0.4.7)

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

programs/exchange_program/Cargo.toml

@@ -9,7 +9,7 @@ homepage = "https://solana.com/"
 edition = "2018"
 
 [dependencies]
-log = "0.4.2"
+log = "0.4.7"
 solana-exchange-api = { path = "../exchange_api", version = "0.17.0" }
 solana-logger = { path = "../../logger", version = "0.17.0" }
 solana-sdk = { path = "../../sdk", version = "0.17.0" }