Fixes #2945 - Update Intern to 4.7.0

[miketaylr]

No description provided.

[miketaylr]

(ノಠ益ಠ)ノ彡┻━┻
SessionNotCreatedException: [POST http://localhost:4444/wd/hub/session / {"desiredCapabilities":{"moz:firefoxOptions":{"args":["-headless"],"prefs":{"security.csp.enable":false},"binary":"/usr/local/bin/firefox"},"name":"intern","idle-timeout":60,"browserName":"chrome","chromeOptions":{"args":["headless","disable-gpu"]}}}] session not created: This version of ChromeDriver only supports Chrome version 78
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
System info: host: '2d063679da95', ip: '172.22.0.3', os.name: 'Linux', os.arch: 'amd64', os.version: '4.15.0-1052-aws', java.version: '11.0.3'
Driver info: driver.version: unknown
remote stacktrace: #0 0x55b29b9497e9 <unknown>

  at Suite.before @ src/lib/executors/Node.ts:483:15
  @ src/lib/Suite.ts:433:54
  at runLifecycleMethod @ src/lib/Suite.ts:398:13
  at before @ src/lib/Suite.ts:501:13
  at Suite.run @ src/lib/Suite.ts:520:10
  @ src/lib/executors/Node.ts:933:27
  at FunctionQueue.next @ src/lib/executors/Node.ts:1061:19

TOTAL: tested 1 platforms, 95 passed, 0 failed; fatal error occurred

Cool.

[miketaylr]

Kind of annoying, I guess we can just pin it to a reasonably new version of Chrome/Chromedriver.... and maybe update it in the future.

[miketaylr]

I should have made this a draft PR...

[miketaylr]

Also updated Chromedriver version here. Eventually we'll probably have to solve this -- in Chromedriver 70, they changed versions to match Chrome stable releases. Chrome doesn't have stable download URLs for arbitrary versions, AFAICT. So there's a possible future where Chrome tests start breaking (because they broke backwards compat w/ 2.44 or whatever) and we have to figure out how to tell Intern to load whatever chromedriver version gets installed on circleci.

Let's just kick that can down the road. 🤷‍♂ 🤷‍♀

[miketaylr]

r=me, just updating deps and tests still pass.