build(deps): bump tokio from 1.5.0 to 1.7.0 in /linkerd/proxy/http/fuzz

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.5.0 to 1.7.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.5.0...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>

linkerd/proxy/http/fuzz/Cargo.lock

@@ -991,9 +991,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.5.0"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83f0c8e7c0addab50b663055baf787d0af7f413a46e6e7fb9559a4e4db7137a5"
+checksum = "c79ba603c337335df6ba6dd6afc38c38a7d5e1b0c871678439ea973cd62a118e"
 dependencies = [
  "autocfg",
  "bytes",