Bump tokio from 1.20.1 to 1.20.3

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.20.1 to 1.20.3.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.20.1...tokio-1.20.3)

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

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

Cargo.lock

@@ -1772,9 +1772,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.20.1"
+version = "1.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a8325f63a7d4774dd041e363b2409ed1c5cbbd0f867795e661df066b2b0a581"
+checksum = "664cf6576f16c0ad68184998f3c2d4be9903ede6b291a5b5cfc97d29e0057283"
 dependencies = [
  "autocfg",
  "bytes",
@@ -1782,7 +1782,6 @@ dependencies = [
  "memchr",
  "mio",
  "num_cpus",
- "once_cell",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",

Cargo.toml

@@ -34,7 +34,7 @@ tantivy = { version = "0.18.0", optional = true }
 # telegram
 teloxide = { version = "0.10.1", optional = true }
 reqwest = { version = "0.11.11", optional = true }
-tokio = { version =  "1.20.1", features = ["rt-multi-thread", "macros"], optional = true }
+tokio = { version =  "1.20.3", features = ["rt-multi-thread", "macros"], optional = true }
 md5 = { version = "0.7.0", optional = true }
 rand = { version = "0.8.5", optional = true }
 # discord