Bump tokio from 1.20.1 to 1.20.4

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.20.1 to 1.20.4.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.20.1...tokio-1.20.4)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
...

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

Cargo.lock

@@ -833,9 +833,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.20.1"
+version = "1.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a8325f63a7d4774dd041e363b2409ed1c5cbbd0f867795e661df066b2b0a581"
+checksum = "eb78f30e4b41e98ca4cce5acb51168a033839a7af9e42b380355808e14e98ee0"
 dependencies = [
  "autocfg",
  "bytes",
@@ -843,7 +843,6 @@ dependencies = [
  "memchr",
  "mio",
  "num_cpus",
- "once_cell",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
@@ -873,7 +872,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "toolbx-tuner"
+name = "toolbxtuner"
 version = "0.0.1"
 dependencies = [
  "relm4",