Bump tokio from 1.12.0 to 1.16.1

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.12.0 to 1.16.1.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.12.0...tokio-1.16.1)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: indirect
...

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

Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -1507,11 +1509,10 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.12.0"
+version = "1.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2c2416fdedca8443ae44b4527de1ea633af61d8f7169ffa6e72c5b53d24efcc"
+checksum = "0c27a64b625de6d309e8c57716ba93021dccf1b3b5c97edd6d3dd2d2135afc0a"
 dependencies = [
- "autocfg 1.0.1",
  "bytes",
  "libc",
  "memchr",