Revert "replacing travis with GH actions"

This reverts commit 749ad2d.

.travis.yml

@@ -0,0 +1,14 @@
+dist: trusty
+language: go
+go:
+  - 1.15
+go_import_path: github.com/makerdao/vdb-transformer-utilities
+script:
+  - go run github.com/onsi/ginkgo/ginkgo -r
+deploy:
+- provider: script
+  script: bash ./.travis/deploy.sh
+  on:
+    branch: main
+notifications:
+  email: false

.travis/deploy.sh

@@ -0,0 +1,30 @@
+#! /usr/bin/env bash
+
+set -e
+
+function message() {
+    echo
+    echo -----------------------------------
+    echo "$@"
+    echo -----------------------------------
+    echo
+}
+
+TAG=latest
+BUILDER_NAME=vdb-builder
+RUNNER_NAME=vdb-runner
+
+message BUILDING BUILDER DOCKER IMAGE
+docker build -f dockerfiles/builder/Dockerfile . -t makerdao/$BUILDER_NAME:$TAG
+
+message BUILDING RUNNER DOCKER IMAGE
+docker build -f dockerfiles/runner/Dockerfile . -t makerdao/$RUNNER_NAME:$TAG
+
+message LOGGING INTO DOCKERHUB
+echo "$DOCKER_PASSWORD" | docker login --username "$DOCKER_USER" --password-stdin
+
+message PUSHING BUILDER DOCKER IMAGE
+docker push makerdao/$BUILDER_NAME:$TAG
+
+message PUSHING RUNNER DOCKER IMAGE
+docker push makerdao/$RUNNER_NAME:$TAG