Update alpine Docker tag to v3.18

renovate[bot] · web-flow · commit 7f779f2d71a3 · 2023-05-28T11:32:33.000Z
diff --git a/backend/Dockerfile b/backend/Dockerfile
@@ -10,7 +10,7 @@ COPY .  .
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o /go/bin/app
 
 
-FROM alpine:3.12 AS runner
+FROM alpine:3.18 AS runner
 
 RUN apk add --no-cache \
     ca-certificates \
