Bump tokio from 1.2.0 to 1.3.0 in /rust (#764)

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.2.0 to 1.3.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.2.0...tokio-1.3.0)

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

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

rust/examples/Cargo.toml

@@ -20,7 +20,7 @@ autobins = false
 async-trait = "0.1.42"
 reqwest = { version = "0.11.1", default-features = false, features = ["rustls-tls"] }
 structopt = "0.3.21"
-tokio = { version = "1.2.0", features = ["sync", "time", "macros", "rt-multi-thread", "signal"] }
+tokio = { version = "1.3.0", features = ["sync", "time", "macros", "rt-multi-thread", "signal"] }
 tracing = "0.1.25"
 tracing-futures = "0.2.5"
 tracing-subscriber = "0.2.16"

rust/xaynet-mobile/Cargo.toml

@@ -20,7 +20,7 @@ reqwest = { version = "0.11.1", default-features = false, features = ["rustls-tl
 sodiumoxide = "0.2.6"
 thiserror = "1.0.24"
 tracing = "0.1.25"
-tokio = { version = "1.2.0", default-features = false, features = ["rt"] }
+tokio = { version = "1.3.0", default-features = false, features = ["rt"] }
 xaynet-core = { path = "../xaynet-core", version = "0.2.0" }
 xaynet-sdk = { path = "../xaynet-sdk", default-features = false, version = "0.1.0", features = ["reqwest-client"]}
 zeroize = "1.2.0"

rust/xaynet-sdk/Cargo.toml

@@ -27,7 +27,7 @@ serde = { version = "1.0.124", features = ["derive"] }
 sodiumoxide = "0.2.6"
 thiserror = "1.0.24"
 # TODO: move to dev-dependencies once concurrent_futures.rs was moved to the e2e package
-tokio = { version = "1.2.0", features = ["rt", "macros"] }
+tokio = { version = "1.3.0", features = ["rt", "macros"] }
 tracing = "0.1.25"
 url = "2.2.1"
 xaynet-core = { path = "../xaynet-core", version = "0.2.0" }

rust/xaynet-server/Cargo.toml

@@ -56,7 +56,7 @@ redis = { version = "0.20.0", default-features = false, features = [
 sodiumoxide = "0.2.6"
 structopt = "0.3.21"
 thiserror = "1.0.24"
-tokio = { version = "1.2.0", features = [
+tokio = { version = "1.3.0", features = [
     "macros",
     "rt-multi-thread",
     "signal",