build(deps): bump zeroize from 1.7.0 to 1.8.1 (#322)

Bumps [zeroize](https://github.com/RustCrypto/utils) from 1.7.0 to 1.8.1.
- [Commits](https://github.com/RustCrypto/utils/compare/zeroize-v1.7.0...zeroize-v1.8.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Prabhpreet Dua <615318+prabhpreet@users.noreply.github.com>

Cargo.toml

@@ -37,7 +37,7 @@ rosenpass-oqs = { path = "oqs" }
 rosenpass-wireguard-broker = { path = "wireguard-broker" }
 doc-comment = "0.3.3"
 base64ct = {version = "1.6.0", default-features=false}
-zeroize = "1.7.0"
+zeroize = "1.8.1"
 memoffset = "0.9.1"
 thiserror = "1.0.61"
 paste = "1.0.15"