build(deps): bump jobserver from 0.1.27 to 0.1.28 (#2720)

Bumps [jobserver](https://github.com/alexcrichton/jobserver-rs) from 0.1.27 to 0.1.28.
- [Commits](https://github.com/alexcrichton/jobserver-rs/commits)

---
updated-dependencies:
- dependency-name: jobserver
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -964,9 +964,9 @@ dependencies = [
 
 [[package]]
 name = "jobserver"
-version = "0.1.27"
+version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c37f63953c4c63420ed5fd3d6d398c719489b9f872b9fa683262f8edd363c7d"
+checksum = "ab46a6e9526ddef3ae7f787c06f0f2600639ba80ea3eade3d8e670a2230f51d6"
 dependencies = [
  "libc",
 ]