chore(deps): update alpine docker tag to v3.21

renovate[bot] · web-flow · commit 77520daea6ac · 2024-12-06T00:50:32.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -5,7 +5,7 @@ COPY . .
 RUN go get
 RUN go build
 
-FROM alpine:3.14
+FROM alpine:3.21
 WORKDIR /app
 COPY --from=builder /app/cluster-operator /app/
 CMD ["./cluster-operator"]
