Update Rust crate tokio to 1.20.1

Cargo.lock

@@ -960,10 +960,11 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.19.2"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c51a52ed6686dd62c320f9b89299e9dfb46f730c7a48e635c19f21d116cb1439"
+checksum = "7a8325f63a7d4774dd041e363b2409ed1c5cbbd0f867795e661df066b2b0a581"
 dependencies = [
+ "autocfg",
  "bytes",
  "libc",
  "memchr",

Cargo.toml

@@ -13,7 +13,7 @@ name = "site"
 [dependencies]
 axum = { version = "0.5.11" }
 hyper = { version = "0.14.20" }
-tokio = { version = "1.19.2", features = ["full"] }
+tokio = { version = "1.20.1", features = ["full"] }
 tracing = "0.1.36"
 tracing-subscriber = {version = "0.3.14", features = ["env-filter"] }
 tower-http = { version = "0.3.4", features = ["fs", "trace", "auth"] }