Switch CI to GitHub actions

[dhomeier]

Description

Replace Azure via reusable workflows from https://github.com/OpenAstronomy/github-actions-workflows

vispy>0.9.1 failing due to https://github.com/vispy/vispy/pull/2227#issuecomment-953934640 since there is still an import in https://github.com/glue-viz/glue-vispy-viewers/blob/7ce0c55989eee9dc4056e5ce1547591cbaab86b6/glue_vispy_viewers/isosurface/multi_iso_visual.py#L45

Including an attempt to replace frag_dict, which at least lets the tests run; no. of failures seems to be unchanged from vispy 0.9.0.

[codecov[bot]]

Codecov Report

Merging #371 (9034cd3) into master (7ce0c55) will increase coverage by 58.27%. The diff coverage is 100.00%.

:exclamation: Current head 9034cd3 differs from pull request most recent head 67a4ff8. Consider uploading reports for the commit 67a4ff8 to get more accurate results

@@             Coverage Diff             @@
##           master     #371       +/-   ##
===========================================
+ Coverage   22.21%   80.48%   +58.27%     
===========================================
  Files          50       50               
  Lines        3885     3885               
===========================================
+ Hits          863     3127     +2264     
+ Misses       3022      758     -2264     

Impacted Files	Coverage Δ
glue_vispy_viewers/isosurface/multi_iso_visual.py	53.33% <100.00%> (+42.22%)	:arrow_up:
glue_vispy_viewers/volume/volume_toolbar.py	27.18% <0.00%> (+6.79%)	:arrow_up:
glue_vispy_viewers/common/selection_tools.py	48.59% <0.00%> (+11.26%)	:arrow_up:
glue_vispy_viewers/common/tools.py	70.88% <0.00%> (+16.45%)	:arrow_up:
...viewers/isosurface/tests/test_isosurface_viewer.py	31.14% <0.00%> (+22.95%)	:arrow_up:
glue_vispy_viewers/utils.py	50.94% <0.00%> (+24.52%)	:arrow_up:
glue_vispy_viewers/isosurface/layer_artist.py	36.27% <0.00%> (+28.43%)	:arrow_up:
glue_vispy_viewers/common/vispy_data_viewer.py	58.53% <0.00%> (+29.26%)	:arrow_up:
glue_vispy_viewers/scatter/scatter_viewer.py	100.00% <0.00%> (+36.36%)	:arrow_up:
glue_vispy_viewers/conftest.py	93.75% <0.00%> (+37.50%)	:arrow_up:
... and 38 more

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[dhomeier]

Marking this as ready as the vispy errors are not related to the Actions workflow. Trying to pin to vispy>=0.9.0,<0.9.1 does not bring much improvement either as there are still only 10 tests passing, and there seems to be no installable 0.9.0 for Python 3.10. Some new/additional failures with 0.10.0 and dev...