build(deps): bump tokio from 1.6.1 to 1.7.0

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.6.1 to 1.7.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.6.1...tokio-1.7.0)

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

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

Cargo.lock

@@ -2180,9 +2180,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.6.1"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a38d31d7831c6ed7aad00aa4c12d9375fd225a6dd77da1d25b707346319a975"
+checksum = "c79ba603c337335df6ba6dd6afc38c38a7d5e1b0c871678439ea973cd62a118e"
 dependencies = [
  "autocfg",
  "bytes",