feat: add BrowserStack beta suite and workflow #2906

Job	Run time
Build Distribution Bundle	42s
Test Jest (18.x)	1m 2s
Test Jest (20.x)	1m 10s
Test Jest (19.x)	1m 10s
Test Jest (21.x)	1m 7s
Test Jest (22.x)	56s
Test Jest (24.x)	1m 1s
Test Jest (25.x)	59s
Test Jest (23.x)	55s
Get Bundle Size from Current Branch	31s
Get Bundle Size from Master	15s
Core Tests / Core SDK Tests	1m 51s
Calculate Bundled Diff / Calculate Bundle Size Difference	12s
Generate Report	2s
Test Stub	48s
Integration Tests: Rollup Common JS / Rollup CJS Test	1m 29s
Integration Tests: webpack Module JS / webpack Module Test	1m 31s
Integration Tests: Rollup Module JS / Rollup Module Test	1m 23s
Integration Tests: Require JS / Require JS Test	1m 1s
Integration Tests: Browserfy Common JS / Browserfy CJS Test	1m 28s
Integration Tests: webpack Common JS / webpack CJS Test	1m 27s
Save PR Number for Dependabot Automerge / Save PR Number for Dependabot Automerge	0s
	21m 0s

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