Bump tokio from 1.6.1 to 1.7.1

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.6.1 to 1.7.1.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.6.1...tokio-1.7.1)

---
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

@@ -918,9 +918,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.6.1"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a38d31d7831c6ed7aad00aa4c12d9375fd225a6dd77da1d25b707346319a975"
+checksum = "5fb2ed024293bb19f7a5dc54fe83bf86532a44c12a2bb8ba40d64a4509395ca2"
 dependencies = [
  "autocfg",
  "bytes",

helix-lsp/Cargo.toml

@@ -23,5 +23,5 @@ lsp-types = { version = "0.89", features = ["proposed"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 thiserror = "1.0"
-tokio = { version = "1.6", features = ["full"] }
+tokio = { version = "1.7", features = ["full"] }
 tokio-stream = "0.1.6"