Update env_logger requirement from 0.7.1 to 0.8.1 (#1806)

Updates the requirements on [env_logger](https://github.com/env-logger-rs/env_logger) to permit the latest version.
- [Release notes](https://github.com/env-logger-rs/env_logger/releases)
- [Changelog](https://github.com/env-logger-rs/env_logger/blob/master/CHANGELOG.md)
- [Commits](https://github.com/env-logger-rs/env_logger/commits/v0.8.1)

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

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

Cargo.toml

@@ -94,7 +94,7 @@ libp2p-websocket = { version = "0.24.0", path = "transports/websocket", optional
 
 [dev-dependencies]
 async-std = "1.6.2"
-env_logger = "0.7.1"
+env_logger = "0.8.1"
 tokio = { version = "0.2", features = ["io-util", "io-std", "stream", "macros"] }
 
 [workspace]

muxers/mplex/Cargo.toml

@@ -23,7 +23,7 @@ unsigned-varint = { version = "0.5", features = ["futures-codec"] }
 
 [dev-dependencies]
 async-std = "1.6.2"
-env_logger = "0.6"
+env_logger = "0.8"
 futures = "0.3"
 libp2p-tcp = { path = "../../transports/tcp", features = ["async-std"] }
 quickcheck = "0.9"

protocols/gossipsub/Cargo.toml

@@ -30,7 +30,7 @@ lru_time_cache = "0.11.0"
 
 [dev-dependencies]
 async-std = "1.6.2"
-env_logger = "0.7.1"
+env_logger = "0.8.1"
 libp2p-plaintext = { path = "../plaintext" }
 libp2p-yamux = { path = "../../muxers/yamux" }
 quickcheck = "0.9.2"

protocols/noise/Cargo.toml

@@ -28,7 +28,7 @@ snow = { version = "0.7.1", features = ["ring-resolver"], default-features = fal
 snow = { version = "0.7.1", features = ["default-resolver"], default-features = false }
 
 [dev-dependencies]
-env_logger = "0.7.1"
+env_logger = "0.8.1"
 libp2p-tcp = { path = "../../transports/tcp", features = ["async-std"] }
 quickcheck = "0.9.0"
 sodiumoxide = "0.2.5"

protocols/plaintext/Cargo.toml

@@ -20,7 +20,7 @@ unsigned-varint = { version = "0.5.1", features = ["futures-codec"] }
 void = "1.0.2"
 
 [dev-dependencies]
-env_logger = "0.7.1"
+env_logger = "0.8.1"
 quickcheck = "0.9.0"
 rand = "0.7"