Bump alpine from 3.20 to 3.21 (#502)

dependabot[bot] · web-flow · commit 02fdfb363c26 · 2025-01-07T15:00:54.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -9,7 +9,7 @@ RUN go mod download
 WORKDIR /app/cmd/backup
 RUN go build -o backup .
 
-FROM alpine:3.20
+FROM alpine:3.21
 
 WORKDIR /root
 
