build(deps): bump lukemathwalker/cargo-chef in /qns (#2172)

Bumps lukemathwalker/cargo-chef from `f50231b` to `acfab68`.

---
updated-dependencies:
- dependency-name: lukemathwalker/cargo-chef
  dependency-type: direct:production
...

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

qns/Dockerfile

@@ -1,4 +1,4 @@
-FROM lukemathwalker/cargo-chef@sha256:f50231b8a01af14eda124040535193d60d9c86d413b02553d2809e5d881b9a90 AS chef
+FROM lukemathwalker/cargo-chef@sha256:acfab68709ad444b7cc9106d7e90a2bce4a77ed63889712fb6686e0e6ecfe8aa AS chef
 
 WORKDIR /app