chore(deps): bump tokio from 1.16.1 to 1.17.0 (#151)

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.16.1 to 1.17.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.16.1...tokio-1.17.0)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

Cargo.toml

@@ -45,7 +45,7 @@ kafka = { version = "0.8.0", optional = true }
 
 # feature: elasticsink
 elasticsearch = { version = "7.14.0-alpha.1", optional = true }
-tokio = { version = "1.15.0", optional = true, features = ["rt"] }
+tokio = { version = "1.17.0", optional = true, features = ["rt"] }
 
 # feature: fingerprint
 murmur3 = { version = "0.5.1", optional = true }