Merge pull request #55 from Cryptophobia/master

chore(Makefile) update to latest hephy/go-dev:v1.28.3 image

Author: Cryptophobia

Makefile

@@ -12,7 +12,7 @@ REPO_PATH := github.com/teamhephy/${SHORT_NAME}
 
 # The following variables describe the containerized development environment
 # and other build options
-DEV_ENV_IMAGE := hephy/go-dev:v1.26.2
+DEV_ENV_IMAGE := hephy/go-dev:v1.28.3
 DEV_ENV_WORK_DIR := /go/src/${REPO_PATH}
 DEV_ENV_CMD := docker run --rm -v ${CURDIR}:${DEV_ENV_WORK_DIR} -w ${DEV_ENV_WORK_DIR} ${DEV_ENV_IMAGE}
 DEV_ENV_CMD_INT := docker run -it --rm -v ${CURDIR}:${DEV_ENV_WORK_DIR} -w ${DEV_ENV_WORK_DIR} ${DEV_ENV_IMAGE}