feat: atomic @sentry/utils used only with submodule imports

[HazAT]

• Move jest.config.js into package.json so we can use rimraf in utils
• Fix all @sentry/utils imports to use submodule imports
• Fix tests

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@50d0005). Click here to learn what that means.
The diff coverage is 100%.

@@           Coverage Diff            @@
##             master   #1413   +/-   ##
========================================
  Coverage          ?   85.1%           
========================================
  Files             ?      32           
  Lines             ?     779           
  Branches          ?     127           
========================================
  Hits              ?     663           
  Misses            ?     110           
  Partials          ?       6

Impacted Files	Coverage Δ
packages/core/src/base.ts	96.51% <100%> (ø)
packages/utils/src/object.ts	100% <100%> (ø)
packages/node/src/integrations/http.ts	54.9% <100%> (ø)
packages/node/src/integrations/console.ts	94.44% <100%> (ø)

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