Bump reqwest from 0.11.5 to 0.11.6 in /src/proxy-manager (#1367)

Bumps [reqwest](https://github.com/seanmonstar/reqwest) from 0.11.5 to 0.11.6.
- [Release notes](https://github.com/seanmonstar/reqwest/releases)
- [Changelog](https://github.com/seanmonstar/reqwest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/seanmonstar/reqwest/compare/v0.11.5...v0.11.6)

---
updated-dependencies:
- dependency-name: reqwest
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/proxy-manager/Cargo.lock

@@ -1002,9 +1002,9 @@ dependencies = [
 
 [[package]]
 name = "reqwest"
-version = "0.11.5"
+version = "0.11.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51c732d463dd300362ffb44b7b125f299c23d2990411a4253824630ebc7467fb"
+checksum = "66d2927ca2f685faf0fc620ac4834690d29e7abb153add10f5812eef20b5e280"
 dependencies = [
  "base64",
  "bytes 1.1.0",