fix(container): update image docker.io/golang to v1.20.6

| datasource | package          | from   | to     |
| ---------- | ---------------- | ------ | ------ |
| docker     | docker.io/golang | 1.20.2 | 1.20.6 |

Dockerfile

@@ -10,7 +10,7 @@ RUN npm install
 
 RUN npm run build
 
-FROM docker.io/golang:1.20.2-alpine as build
+FROM docker.io/golang:1.20.6-alpine as build
 
 ARG TARGETPLATFORM
 ENV TARGETPLATFORM=${TARGETPLATFORM:-linux/amd64}