Bump tokio from 1.9.0 to 1.10.0 in /policy-controller (#6676)

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.9.0 to 1.10.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.9.0...tokio-1.10.0)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

policy-controller/Cargo.lock

@@ -1699,9 +1699,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b7b349f11a7047e6d1276853e612d152f5e8a352c61917887cc2169e2366b4c"
+checksum = "01cf844b23c6131f624accf65ce0e4e9956a8bb329400ea5bcc26ae3a5c20b0b"
 dependencies = [
  "autocfg",
  "bytes",