Bump jobslot from 0.2.6 to 0.2.8 (#564)

Bumps [jobslot](https://github.com/cargo-bins/jobslot) from 0.2.6 to 0.2.8.
- [Release notes](https://github.com/cargo-bins/jobslot/releases)
- [Commits](https://github.com/cargo-bins/jobslot/compare/v0.2.6...v0.2.8)

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

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

Cargo.lock

@@ -1066,16 +1066,16 @@ dependencies = [
 
 [[package]]
 name = "jobslot"
-version = "0.2.6"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d395750ec1a0237b64ce69634232669d352a2b2cf63120d567b5938b9cb17650"
+checksum = "45a08d2656617d9bcba4763baf13ae19b7d5183e2c5c1db9e2074c5ae93d9905"
 dependencies = [
  "cfg-if",
  "getrandom",
  "libc",
  "scopeguard",
  "tokio",
- "winapi",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]