PostCSS Values Parser warning

[Antonio-Laguna]

As a result of #225 , @romainmenke discovered that postcss-values-parser package has an issue given that it modifies the prototype of postcss/lib/container this means that if you have multiple versions of the postcss-values-parser you can run into unexpected issues.

We've normalised all of the usages of this plugin into a single version so it's deduped but if you run the following command:

npm ls --depth 2 | grep postcss-values-parser

And don't get something along these lines where there's a single version (6.0.1) you might run into issues.

│ ├─┬ postcss-values-parser@6.0.1
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped
│ ├── postcss-values-parser@6.0.1 deduped

[Antonio-Laguna]

Reported on the package: shellscape/postcss-values-parser#143

[Antonio-Laguna]

Fixed as of csstools/postcss-plugins@b1c4d27