bump base image of light docker image to alpine:3.12
bump base image of light docker image to alpine:3.12

ewbankkit/terraform,apparentlymart/terraform,hashicorp/terraform,rnaveiras/terraform,ewbankkit/terraform,pdecat/terraform,apparentlymart/terraform,tommynsong/terraform,pdecat/terraform,hashicorp/terraform,apparentlymart/terraform,ewbankkit/terraform,ewbankkit/terraform,hashicorp/terraform,pdecat/terraform,rnaveiras/terraform,tommynsong/terraform,rnaveiras/terraform,tommynsong/terraform,apparentlymart/terraform,pdecat/terraform,apparentlymart/terraform