chore: run apt update && apt upgrade -y in dockerfile (#1317)

* chore: run apt update && apt upgrade -y in dockerfile

Signed-off-by: Anish Ramasekar <[email protected]>

* Update Dockerfile

Co-authored-by: Sertaç Özercan <[email protected]>

Signed-off-by: Anish Ramasekar <[email protected]>
Co-authored-by: Sertaç Özercan <[email protected]>

Author: aramase

Dockerfile

@@ -18,8 +18,9 @@ RUN export GOOS=$TARGETOS && \
     make build
 
 FROM k8s.gcr.io/build-image/debian-iptables:bullseye-v1.5.1 AS nmi
-# upgrading zlib1g due to CVE-2022-37434
-RUN clean-install ca-certificates zlib1g
+RUN apt update && \
+    apt upgrade -y && \
+    clean-install ca-certificates
 COPY --from=builder /go/src/github.com/Azure/aad-pod-identity/bin/aad-pod-identity/nmi /bin/
 RUN useradd -u 10001 nonroot
 USER nonroot