chore(deps): bump tokio from 1.19.2 to 1.20.3 in /tooling/webdriver (#5996)

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

tooling/webdriver/Cargo.lock

@@ -8,6 +8,12 @@ version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bb07d2053ccdbe10e2af2995a2f116c1330396493dc1269f6a91d0ae82e19704"
 
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
 [[package]]
 name = "bytes"
 version = "1.1.0"
@@ -378,13 +384,13 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.19.2"
+version = "1.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c51a52ed6686dd62c320f9b89299e9dfb46f730c7a48e635c19f21d116cb1439"
+checksum = "664cf6576f16c0ad68184998f3c2d4be9903ede6b291a5b5cfc97d29e0057283"
 dependencies = [
+ "autocfg",
  "libc",
  "mio",
- "once_cell",
  "pin-project-lite",
  "socket2",
  "tokio-macros",