build(deps): bump golang from 1.14.4-alpine to 1.15.0-alpine (#345)

dependabot-preview[bot] · web-flow · commit 0c87d9fb597d · 2020-08-12T12:31:25.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.14.4-alpine AS build
+FROM golang:1.15.0-alpine AS build
 
 ENV  CGO_ENABLED 0
 WORKDIR /code
