Update golang Docker tag to v1.21

renovate[bot] · web-flow · commit aa70a7938b30 · 2023-12-27T18:43:47.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine AS build
+FROM golang:1.21-alpine AS build
 
 WORKDIR /src
 COPY go.mod go.sum ./
