Update golang Docker tag to v1.21.2

renovate[bot] · web-flow · commit 256f9bc193ce · 2023-10-08T00:59:01.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,5 +1,5 @@
 # Operator
-FROM golang:1.16.0 AS builder
+FROM golang:1.21.2 AS builder
 RUN mkdir -p /src
 ADD Makefile /
 
