build(deps): bump core-foundation-sys from 0.8.3 to 0.8.4 (#30524)

Bumps [core-foundation-sys](https://github.com/servo/core-foundation-rs) from 0.8.3 to 0.8.4.
- [Commits](https://github.com/servo/core-foundation-rs/compare/core-foundation-sys-v0.8.3...core-foundation-sys-v0.8.4)

---
updated-dependencies:
- dependency-name: core-foundation-sys
  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>

Cargo.lock

@@ -1050,9 +1050,9 @@ dependencies = [
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
 [[package]]
 name = "core-graphics"