Update alpine Docker tag to v3.21

renovate[bot] · web-flow · commit 48b594bdad4e · 2024-12-06T01:00:15.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,6 +1,6 @@
 ## Image name: faucet/base
 
-FROM alpine:3.16
+FROM alpine:3.21
 
 RUN apk add --no-cache bash su-exec
 
