Add a GitHub Actions workflow for deployment

[MythicManiac]

Add a GitHub Actions workflow which can be used to trigger a deployment workflow in another repo.

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (216a20f) 92.20% compared to head (c0ebbb9) 92.20%. Report is 4 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #890 +/- ## ======================================= Coverage 92.20% 92.20% ======================================= Files 270 270 Lines 7737 7737 Branches 736 736 ======================================= Hits 7134 7134 Misses 501 501 Partials 102 102 ```

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