switch to goboring/golang for building (FIPS 140-2)

Author: Michael Weber

.circleci/config.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     working_directory: /go/workdir/src/github.com/splunk/vault-plugin-splunk
     docker:
-      - image: circleci/golang:1.13.4
+      - image: goboring/golang:1.15.3b5
         <<: *defaultenv
       - image: splunk/splunk:latest
         user: root

Makefile

@@ -36,6 +36,7 @@ lint: dep
 
 .PHONY: dep
 dep:
+	curl -sSL "https://github.com/gotestyourself/gotestsum/releases/download/v0.3.1/gotestsum_0.3.1_linux_amd64.tar.gz" | sudo tar -xz -C /usr/local/bin gotestsum 
 	./scripts/golangci-lint.sh -b $(GOBIN) v1.20.0
 
 .PHONY: clean