Update alpine Docker tag to v3.18

renovate[bot] · web-flow · commit 41bf9fa20070 · 2023-05-28T09:37:27.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -16,7 +16,7 @@ COPY . .
 
 RUN CGO_ENABLED=0 go build -o webhook -ldflags '-w -extldflags "-static"' .
 
-FROM alpine:3.12
+FROM alpine:3.18
 
 RUN apk add --no-cache ca-certificates
 
