build: :arrow_up: update all dependencies

[DerZade]

This PR

• updates all npm dependencies and will (probably 😂) therefore fix #14
• updates all actions in the CI
• removes node 12.x from the build job as it is deprecated

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (0fc03ec) 100.00% compared to head (892f912) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #16 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 4 4 Lines 71 71 Branches 5 5 ========================================= Hits 71 71 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gruppe-adler). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gruppe-adler)

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