Update alpine Docker tag to v3.21.1

renovate[bot] · web-flow · commit f891d34dc91b · 2025-01-08T16:01:34.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13.5 as base
+FROM alpine:3.21.1 as base
 ARG VERSION
 ARG CHECKSUM
 SHELL ["/bin/ash", "-eo", "pipefail", "-c"]
