VOL-3978 - update to latest go version

Change-Id: I6e3098dcf2f95b1cda4a3fb43979abc92d5bd530
diff --git a/docker/gocover-cobertura.Dockerfile b/docker/gocover-cobertura.Dockerfile
index 21d59fd..62e1d14 100644
--- a/docker/gocover-cobertura.Dockerfile
+++ b/docker/gocover-cobertura.Dockerfile
@@ -14,7 +14,7 @@
 ARG GOLANG_VERSION
 FROM golang:$GOLANG_VERSION-alpine as build
 
-RUN apk add --no-cache build-base=0.5-r1
+RUN apk add --no-cache build-base=0.5-r2
 
 # download & compile this specific version of gocover-cobertura
 ARG GOCOVER_COBERTURA_VERSION