build: bump libz-sys from 1.1.4 to 1.1.5

Bumps [libz-sys](https://github.com/rust-lang/libz-sys) from 1.1.4 to 1.1.5.
- [Release notes](https://github.com/rust-lang/libz-sys/releases)
- [Commits](https://github.com/rust-lang/libz-sys/compare/1.1.4...1.1.5)

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

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

Cargo.lock

@@ -453,9 +453,9 @@ dependencies = [
 
 [[package]]
 name = "libz-sys"
-version = "1.1.4"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df2bf61678a0a521c3f7daf815d2e6717d85a272a7dcd02c9768272b32bd1e2a"
+checksum = "6f35facd4a5673cb5a48822be2be1d4236c1c99cb4113cab7061ac720d5bf859"
 dependencies = [
  "cc",
  "libc",