* Update mongodb atlas plugin version

* go.mod was missing mongodbatlas plugin

* add changelog

* update build-go-dev circle ci job GOPROXY

* Revert "update build-go-dev circle ci job GOPROXY"

This reverts commit 0e6f339c

.

* ci: more complete go mod cache

* ci: doc use of go list ./... to populate mod cache
Co-authored-by: Sam Salisbury <samsalisbury@gmail.com>