message: Use env var instead of git config for setting the ssh key yo use
diff: @@ -166,8 +166,7 @@ updateRepoWithRemoteChanges() {
  git -C "${TARGET_REPO}" pull upstream "${BRANCH_CHARTS_REPO_ORIGINAL}"
  # https://superuser.com/questions/232373/how-to-tell-git-which-private-key-to-use
  - git -C "${TARGET_REPO}" config --local core.sshCommand "ssh -i ~/.ssh/${FORKED_SSH_KEY_FILENAME} -F /dev/null"
  - git -C "${TARGET_REPO}" push origin "${BRANCH_CHARTS_REPO_FORKED}"
  + GIT_SSH_COMMAND="ssh -i ~/.ssh/${FORKED_SSH_KEY_FILENAME}" git -C "${TARGET_REPO}" push origin "${BRANCH_CHARTS_REPO_FORKED}"
  rm -rf "${KUBEAPPS_CHART_DIR}"
  cp -R "${targetChartPath}" "${KUBEAPPS_CHART_DIR}"
  