fix: Update alpine packages to fix security vulnerabilities

Signed-off-by: Anurag Rajawat <anurag@stepsecurity.io>

Author: anurag-stepsecurity

Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.23@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659
 
-RUN apk add --no-cache ca-certificates curl bash tar git
+RUN apk add --no-cache ca-certificates curl bash tar git && apk upgrade --no-cache zlib libexpat
 
 COPY src/entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh