Bump tokio from 1.19.2 to 1.20.0 in /src/proxy-manager (#2164)

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.19.2 to 1.20.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.19.2...tokio-1.20.0)

---
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>

src/proxy-manager/Cargo.lock

@@ -726,6 +726,7 @@ dependencies = [
 name = "onefuzz-telemetry"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "appinsights",
  "chrono",
  "lazy_static",
@@ -1387,10 +1388,11 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.19.2"
+version = "1.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c51a52ed6686dd62c320f9b89299e9dfb46f730c7a48e635c19f21d116cb1439"
+checksum = "57aec3cfa4c296db7255446efb4928a6be304b431a806216105542a67b6ca82e"
 dependencies = [
+ "autocfg",
  "bytes",
  "libc",
  "memchr",

src/proxy-manager/Cargo.toml

@@ -16,7 +16,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 storage-queue = { path = "../agent/storage-queue" }
 thiserror = "1.0"
-tokio = { version = "1.19", features = ["macros", "rt-multi-thread", "fs", "process"] }
+tokio = { version = "1.20", features = ["macros", "rt-multi-thread", "fs", "process"] }
 url = { version = "2.2", features = ["serde"] }
 reqwest-retry = { path = "../agent/reqwest-retry"}
 onefuzz-telemetry = { path = "../agent/onefuzz-telemetry" }