feat: add timezone data into image (#806)

Add tzdata package to the Alpine builder stage and copy zoneinfo files
into the final image to enable timezone support in the sbom-operator container.

Author: remmercier

Dockerfile

@@ -3,7 +3,8 @@ FROM alpine:latest AS alpine
 ARG TARGETARCH
 
 RUN set -eux; \
-    apk add -U --no-cache ca-certificates
+    apk add -U --no-cache ca-certificates; \
+    apk add -U --no-cache tzdata
 
 
 FROM scratch
@@ -12,6 +13,7 @@ ARG TARGETOS
 ARG TARGETARCH
 
 COPY --from=alpine /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=alpine /usr/share/zoneinfo /usr/share/zoneinfo
 COPY dist/sbom-operator_${TARGETOS}_${TARGETARCH}*/sbom-operator /usr/local/bin/sbom-operator
 
 ENTRYPOINT ["/usr/local/bin/sbom-operator"]