fix(extensions): allow consolidate@<0.16.0 to use mustache@^3.0.0

[andreyfel]

testem specifies mustache@^3.0.0 and [email protected] in its dependencies.
When you install testem using [email protected] it ends up with versions conflict:

.
└─┬ ember-cli
  └─┬ testem
    └─┬ consolidate
      └── ✕ unmet peer mustache@^4.0.1: found 3.2.1

What's the problem this PR addresses?

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How did you fix it?

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Checklist

• I have read the Contributing Guide.

• I have set the packages that need to be released for my changes to be effective.

• I will check that all automated PR checks pass before the PR gets reviewed.

[merceyz]

This is the range declared upstream, in order to change it here it needs to be changed upstream as well.
https://github.com/tj/consolidate.js/blob/ec2e1ae511d37a69716022311a4ca29785f62143/package.json#L121

[andreyfel]

@merceyz the problem is that mustache@3 must be used with [email protected] and mustache@4 must be used with consolidate@^0.16.0 according to this. What is the best way to achieve that? Have a separate entry for consolidate<=0.15.1 and another one for consolidate>0.15.1?

[andreyfel]

Closing in favor of #4467

[merceyz]

There is no need to close this PR and open a new one, update this PR instead.

[merceyz]

the problem is that mustache@3 must be used with [email protected] and mustache@4 must be used with consolidate@^0.16.0 according to this

Alright, in that case the need for an upstream PR is void 👍

What is the best way to achieve that? Have a separate entry for consolidate<=0.15.1

Yes, add an entry before the current one that only targets consolidate@<0.16.0 and only specifies the mustache@3 peer dependency.

[andreyfel]

@merceyz please check if I did it correctly.

[merceyz]

LGTM!