migrate circleci to github workflow #1081

Job	Run time
Build Dash Package	2m 21s
Detect Relevant Path Changes	5s
Build on Windows	7m 17s
Finalize Percy Snapshots	3s
Consolidated Test Report	10s
Lint & Unit Tests (Python ${{ matrix.python-version }})	-1s
Dash Table Visual Tests	-1s
DCC Lint Tests (Python ${{ matrix.python-version }})	-1s
Typing Tests	-1s
Main Dash Tests (Python ${{ matrix.python-version }}, Group ${{ matrix.test-group }})	-1s
Table Server Tests (Group ${{ matrix.test-group }})	-1s
Table Unit/Lint Tests (Python ${{ matrix.python-version }})	-1s
DCC Integration Tests (Python ${{ matrix.python-version }}, Group ${{ matrix.test-group }})	-1s
HTML Components Tests (Python ${{ matrix.python-version }})	-1s
Run Background & Async Callback Tests (Python ${{ matrix.python-version }})	-1s
Store Build Artifacts	0s
	9m 46s

Provide feedback