add master for branches on ci (#3)

* add master for branches on ci

* leave yarn files where they belong

* style: format code with Prettier

This commit fixes the style issues introduced in 467e82a according to the output
from Prettier.

Details: #3

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Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>