Update env_logger requirement from 0.5.12 to 0.6.0

Updates the requirements on [env_logger](https://github.com/sebasmagri/env_logger) to permit the latest version.
- [Release notes](https://github.com/sebasmagri/env_logger/releases)
- [Commits](https://github.com/sebasmagri/env_logger/commits/v0.6.0)

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

programs/native/bpf_loader/Cargo.toml

@@ -13,7 +13,7 @@ bpf_c = []
 bincode = "1.0.0"
 byteorder = "1.2.1"
 elf = "0.0.10"
-env_logger = "0.5.12"
+env_logger = "0.6.0"
 libc = "0.2.43"
 log = "0.4.2"
 solana_rbpf = "=0.1.4"

programs/native/erc20/Cargo.toml

@@ -8,7 +8,7 @@ license = "Apache-2.0"
 
 [dependencies]
 bincode = "1.0.0"
-env_logger = "0.5.12"
+env_logger = "0.6.0"
 log = "0.4.2"
 serde = "1.0.27"
 serde_derive = "1.0.27"

programs/native/lua_loader/Cargo.toml

@@ -8,7 +8,7 @@ license = "Apache-2.0"
 
 [dependencies]
 bincode = "1.0.0"
-env_logger = "0.5.12"
+env_logger = "0.6.0"
 log = "0.4.2"
 rlua = "0.15.2"
 serde = "1.0.27"