chore(deps): update golang docker tag to v1.21.6

renovate[bot] · web-flow · commit 8d5d4d105415 · 2024-01-10T20:45:32.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.5 as builder
+FROM golang:1.21.6 as builder
 
 WORKDIR /go/src
 
