chore(deps): bump busybox from 1.37 to 1.38 in /images/installer

Bumps busybox from 1.37 to 1.38.

---
updated-dependencies:
- dependency-name: busybox
  dependency-version: '1.38'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

images/installer/Dockerfile

@@ -11,7 +11,7 @@ RUN CGO_ENABLED=0 go build -o rcm-node-installer ./cmd/node-installer
 RUN /app/rcm-node-installer -h
 
 # Using busybox instead of scratch so that the nsenter utility is present, as used in restarter logic
-FROM busybox:1.37@sha256:1487d0af5f52b4ba31c7e465126ee2123fe3f2305d638e7827681e7cf6c83d5e
+FROM busybox:1.38@sha256:fd8d9aa63ba2f0982b5304e1ee8d3b90a210bc1ffb5314d980eb6962f1a9715d
 COPY --from=builder /app/rcm-node-installer /rcm-node-installer
 
 ENTRYPOINT ["/rcm-node-installer"]