Alan Agius bf0709b14c feat(@angular-devkit/build-angular): disable critical CSS inlining by default
With this change we disable critical css inline by default. The main motivations are the following issues #20760 and #20864.

BREAKING CHANGE:

Inlining of critical CSS is no longer enable by default. Users already on Angular CLI version 12 and have not opted-out from using this feature are encouraged to opt-in using the browser builder `inlineCritical` option.

The motivation behind this change is that the package used to parse the CSS has a number of defects which can lead to unactionable error messages when updating to Angular 13 from versions priors to 12. Such errors can be seen in the following issue #20760.

```json
"configurations": {
  "production": {
    "optimization": {
      "styles": {
        "inlineCritical": true,
      }
    },
    ...
  }
```
2021-10-06 14:34:11 -05:00
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