Merge pull request #305 from CecileRobertMichon/update-golang-2

update golang version in Dockerfile

Dockerfile

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # Build the manager binary
-FROM golang:1.12.9 as builder
+FROM golang:1.12.10 as builder
 WORKDIR /workspace
 
 # Run this with docker build --build_arg $(go env GOPROXY) to override the goproxy