Extract check that latest master commit has been deployed to CI step

[solidgoldpig]

hmpps-book-secure-move-frontend/test/e2e/parallel-runner.js

Lines 199 to 225 in d722f46

	const checkCircleSha = async () => {
	const { CIRCLECI, CIRCLE_BRANCH, CIRCLE_SHA1 } = process.env
	if (E2E_BASE_URL && CIRCLECI && CIRCLE_BRANCH === 'master') {
	const sleep = (ms = 0) => new Promise(resolve => setTimeout(resolve, ms))
	let checkPing = true
	const pingUrl = `${E2E_BASE_URL}/healthcheck/ping`
	process.stdout.write(
	`Checking ${pingUrl} for correct commit sha ${CIRCLE_SHA1}`
	)
	while (checkPing) {
	try {
	const { data } = await axios.get(pingUrl)
	if (data.commit_id === CIRCLE_SHA1) {
	checkPing = false
	process.stdout.write(`${E2E_BASE_URL} returned correct commit sha`)
	}
	} catch (error) {
	process.stdout.write('.')
	await sleep(2000)
	}
	}
	}
	}

This would be better as a step in our CI task. It should probably be rolled up together with the get-review-app script