chore(deps): bump tokio-util from 0.6.9 to 0.7.0 (#895)

Bumps [tokio-util](https://github.com/tokio-rs/tokio) from 0.6.9 to 0.7.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/commits)

---
updated-dependencies:
- dependency-name: tokio-util
  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.lock

@@ -1336,7 +1336,7 @@ dependencies = [
  "thiserror",
  "tokio",
  "tokio-tungstenite",
- "tokio-util",
+ "tokio-util 0.7.0",
  "tracing",
  "tracing-futures",
  "url",
@@ -1701,7 +1701,7 @@ dependencies = [
  "indexmap",
  "slab",
  "tokio",
- "tokio-util",
+ "tokio-util 0.6.9",
  "tracing",
 ]
 
@@ -3808,6 +3808,20 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64910e1b9c1901aaf5375561e35b9c057d95ff41a44ede043a03e09279eabaf1"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "log",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "toml"
 version = "0.5.8"

ethers-providers/Cargo.toml

@@ -42,7 +42,7 @@ bytes = { version  = "1.1.0", default-features = false, optional = true }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 # tokio
-tokio-util = { version = "0.6.9", default-features = false, features = ["io"], optional = true }
+tokio-util = { version = "0.7.0", default-features = false, features = ["io"], optional = true }
 tokio = { version = "1.5", default-features = false, optional = true }
 tokio-tungstenite = { version = "0.16.1", default-features = false, features = ["connect"], optional = true }