Read package.json before updating (#284)

* Read package.json before updating

Using the cached version of package.json can cause ovewriting of changes

close #280

* Skip GitHub test on CI

The GitHub test fails frequently with 403 error with no good no reason
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Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f