chore(container): update alpine docker digest to a8560b3 (#32046)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| alpine | final | digest | `56fa17d` -> `a8560b3` |

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containers/apps/kube-sa-proxy/Dockerfile

@@ -26,7 +26,7 @@ COPY ./containers/apps/kube-sa-proxy/internal/utils ./internal/utils
 RUN go build -ldflags "-w -s" -o /output/my-proxy-service .
 
 # Stage 2 - Create the final image
-FROM alpine@sha256:56fa17d2a7e7f168a043a2712e63aed1f8543aeafdcee47c58dcffe38ed51099 AS runner
+FROM alpine@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c AS runner
 
 # Install necessary runtime dependencies
 RUN apk --no-cache add ca-certificates