Update alpine Docker tag to v3.21.3

renovate[bot] · web-flow · commit b661ff988e4a · 2025-02-14T21:02:02.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -14,7 +14,7 @@ RUN go build \
     -o /go/bin/aws-rds-maxcon-prometheus-exporter \
     -ldflags '-s -w'
 
-FROM alpine:3.18.2 AS runner
+FROM alpine:3.21.3 AS runner
 
 COPY --from=builder /go/bin/aws-rds-maxcon-prometheus-exporter /app/aws-rds-maxcon-prometheus-exporter
 
