VOL-3978 - update to latest go version

Change-Id: I6e3098dcf2f95b1cda4a3fb43979abc92d5bd530
diff --git a/docker/golang.Dockerfile b/docker/golang.Dockerfile
index 0cfa9ec..519d500 100644
--- a/docker/golang.Dockerfile
+++ b/docker/golang.Dockerfile
@@ -15,7 +15,7 @@
 ARG GOLANG_VERSION
 FROM golang:$GOLANG_VERSION-alpine
 
-RUN apk add --no-cache git=2.24.4-r0 && \
+RUN apk add --no-cache git=2.30.2-r0 && \
     mkdir -m 777 /.cache /go/pkg
 
 ENV GO111MODULE=on CGO_ENABLED=0