cargo: bump num_cpus from 1.14.0 to 1.15.0

Bumps [num_cpus](https://github.com/seanmonstar/num_cpus) from 1.14.0 to 1.15.0.
- [Release notes](https://github.com/seanmonstar/num_cpus/releases)
- [Changelog](https://github.com/seanmonstar/num_cpus/blob/master/CHANGELOG.md)
- [Commits](https://github.com/seanmonstar/num_cpus/compare/v1.14.0...v1.15.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -1031,11 +1031,11 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6058e64324c71e02bc2b150e4f3bc8286db6c83092132ffa3f6b1eab0f9def5"
+checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
 dependencies = [
- "hermit-abi 0.1.19",
+ "hermit-abi 0.2.6",
  "libc",
 ]
 

lib/Cargo.toml

@@ -46,7 +46,7 @@ tracing = "0.1.37"
 [dev-dependencies]
 assert_matches = "1.5.0"
 insta = "1.23.0"
-num_cpus = "1.14.0"
+num_cpus = "1.15.0"
 rand = "0.8.5"
 test-case = "2.2.2"
 testutils = { path = "testutils" }