Update Rust crate tokio to 1.31

Cargo.lock

@@ -680,9 +680,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.30.0"
+version = "1.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d3ce25f50619af8b0aec2eb23deebe84249e19e2ddd393a6e16e3300a6dadfd"
+checksum = "40de3a2ba249dcb097e01be5e67a5ff53cf250397715a071a81543e8a832a920"
 dependencies = [
  "backtrace",
  "bytes",

src/cmd/prae/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-tokio = { version = "1.30", features = ["full"] }
+tokio = { version = "1.31", features = ["full"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 anyhow = {version = "1.0.72"}

src/lib/prae_api/Cargo.toml

@@ -9,7 +9,7 @@ edition = "2021"
 axum = { version = "0.6" }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.104"
-tokio = { version = "1.30", features = ["full"] }
+tokio = { version = "1.31", features = ["full"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3" }
 anyhow = { version = "1.0.72" }