Merge branch...

Merge branch '41-update-golangci-lint-image-to-go-1-14-to-eliminate-unnecessary-warnings' into 'master'

Resolve "Update golangci-lint image to Go 1.14 to eliminate unnecessary warnings"

Closes #41

See merge request gitlab-org/gitlab-build-images!290

Dockerfile.golangci-lint-alpine

-FROM golangci/golangci-lint:v1.21-alpine
+FROM golangci/golangci-lint:v1.25.1-alpine
 # git must be installed for golangci-lint's --new-from-rev flag to work.
 RUN apk --no-cache add git jq
 # Include a default .golangci.yml