chore(deps): update golang docker tag to v1.21.5

renovate[bot] · web-flow · commit 3cd7448cd8cc · 2023-12-05T22:15:18.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.12.3-alpine
+FROM golang:1.21.5-alpine
 
 # cache buster
 RUN echo 4 
