Merge pull request #957 from erikwilson/downgrade-go-v1.12.12

Dockerfile.dapper

-FROM golang:1.13.2-alpine3.10
+FROM golang:1.12.12-alpine3.10
 
 RUN apk -U --no-cache add bash git gcc musl-dev docker vim less file curl wget ca-certificates jq linux-headers zlib-dev tar zip squashfs-tools npm coreutils \
     python3 py3-pip python3-dev openssl-dev libffi-dev libseccomp libseccomp-dev make

Dockerfile.sonobuoy.dapper

-FROM golang:1.13.2-alpine3.10
+FROM golang:1.13.3-alpine3.10
 
 RUN apk -U --no-cache add bash git gcc musl-dev docker curl jq coreutils
 RUN SONOBUOY_VER=v0.16.2 && \