Update the default sandbox #846

Job	Run time
discover_matrix	27s
lint-all-packages	27s
Legacy Mocha Tests - 14.x	25s
Test Packages (14.x, windows-latest)	3m 1s
Ember Tests (16.x, windows-latest)	2m 24s
Legacy Mocha Tests - 16.x	23s
Ember Tests (16.x, ubuntu-latest)	40s
Test Packages (14.x, ubuntu-latest)	1m 20s
Test Packages (16.x, windows-latest)	2m 53s
Ember Tests (14.x, ubuntu-latest)	42s
Test Packages (16.x, ubuntu-latest)	1m 23s
ember-try for ember-cli-fastboot: ember-beta	55s
Ember Tests (14.x, windows-latest)	2m 28s
ember-try for ember-cli-fastboot: ember-lts-3.24	51s
ember-try for ember-cli-fastboot: ember-lts-3.16	42s
ember-try for ember-cli-fastboot: ember-lts-5.4	55s
ember-try for ember-cli-fastboot: embroider-safe	42s
ember-try for ember-cli-fastboot: ember-lts-3.20	55s
ember-try for ember-cli-fastboot: ember-release-no-deprecations	58s
ember-try for ember-cli-fastboot: ember-lts-4.8	53s
ember-try for ember-cli-fastboot: ember-canary	54s
ember-try for ember-cli-fastboot: ember-lts-4.12	43s
ember-try for ember-cli-fastboot: no-deprecations	50s
ember-try for ember-cli-fastboot: embroider-optimized	39s
ember-try for ember-cli-fastboot: ember-release	54s
ember-try for ember-cli-fastboot: ember-lts-3.28	53s
ember-try for ember-cli-fastboot: ember-lts-4.4	53s
fastboot-express-middleware	35s
fastboot-shoebox-test	33s
custom-output-paths	39s
request-details	37s
integration-tests	1m 21s
ember-cli-fastboot	34s
fastboot-config-location	31s
root-url	31s
fastboot-location	37s
oneerror-per-visit	1m 1s
	36m 9s

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