build(deps): bump lukemathwalker/cargo-chef in /qns (#2407)

Bumps lukemathwalker/cargo-chef from `8d7418b` to `ca7d16d`.

---
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@sha256:8d7418b380e6a13210a0eee2a672c648cd358aebfc3bfeaa93272e3ba28245aa AS chef
+FROM lukemathwalker/cargo-chef@sha256:ca7d16daba13bfc84d947cb16f54cdaf547c830b4292e58618ccb4747202ef23 AS chef
 
 WORKDIR /app