Bump openssl-sys from 0.9.87 to 0.9.88

Bumps [openssl-sys](https://github.com/sfackler/rust-openssl) from 0.9.87 to 0.9.88.
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](https://github.com/sfackler/rust-openssl/compare/openssl-sys-v0.9.87...openssl-sys-v0.9.88)

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

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

Cargo.lock

@@ -1268,9 +1268,9 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.87"
+version = "0.9.88"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e17f59264b2809d77ae94f0e1ebabc434773f370d6ca667bd223ea10e06cc7e"
+checksum = "c2ce0f250f34a308dcfdbb351f511359857d4ed2134ba715a4eadd46e1ffd617"
 dependencies = [
  "cc",
  "libc",