chore(deps): stable ember infrastructure (patch)

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
ember-resolver	devDependencies	patch	8.0.1 -> 8.0.2
ember-source (source)	devDependencies	patch	3.20.3 -> 3.20.4

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Release Notes

ember-cli/ember-resolver

### [`v8.0.2`](https://togithub.com/ember-cli/ember-resolver/blob/master/CHANGELOG.md#v802-2020-08-08) [Compare Source](https://togithub.com/ember-cli/ember-resolver/compare/v8.0.1...v8.0.2) ##### :bug: Bug Fix - [#​590](https://togithub.com/ember-cli/ember-resolver/pull/590) Revert "Ensure app/foo/index.js can be looked up with foo:main" ([@​rwjblue](https://togithub.com/rwjblue)) ##### Committers: 1 - Robert Jackson ([@​rwjblue](https://togithub.com/rwjblue))

emberjs/ember.js

### [`v3.20.4`](https://togithub.com/emberjs/ember.js/blob/master/CHANGELOG.md#v3204-August-11-2020) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v3.20.3...v3.20.4) - [#​19047](https://togithub.com/emberjs/ember.js/pull/19047) Ensure `inject-babel-helpers` plugin can be parallelized - [#​19089](https://togithub.com/emberjs/ember.js/pull/19089) Update rendering engine to improve immediate encoding performance - [#​19082](https://togithub.com/emberjs/ember.js/pull/19082) Simplify mixin application - [#​19088](https://togithub.com/emberjs/ember.js/pull/19088) Simplify factory instantiation from the container - [#​19028](https://togithub.com/emberjs/ember.js/pull/19028) Ensure setter CP's with dependent keys on curly components can be two way bound - [#​19077](https://togithub.com/emberjs/ember.js/pull/19077) Simplify `get` and improve `computed` caching scheme. - [#​19065](https://togithub.com/emberjs/ember.js/pull/19065) / [#​19072](https://togithub.com/emberjs/ember.js/pull/19072) - Updates GlimmerVM to improve internal destroyable system and improve tag / revision computation. - [#​19081](https://togithub.com/emberjs/ember.js/pull/19081) Reduces template compilation size in production builds.

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