build(deps): bump redox_syscall from 0.2.12 to 0.2.13 (#1578)

Bumps redox_syscall from 0.2.12 to 0.2.13.

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 3369ca1)
Signed-off-by: Oliver Gould <ver@buoyant.io>

Cargo.lock

@@ -1855,9 +1855,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.12"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ae183fc1b06c149f0c1793e1eb447c8b04bfe46d48e9e48bfb8d2d7ed64ecf0"
+checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"
 dependencies = [
  "bitflags",
 ]