[Snyk] Upgrade sass from 1.49.9 to 1.50.1

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to upgrade sass from 1.49.9 to 1.50.1.

![merge advice](https://app.snyk.io/badges/merge-advice/?package_manager=npm&package_name=sass&from_version=1.49.9&to_version=1.50.1&pr_id=a8b37713-6a59-4e88-8ff1-69619687de4b&visibility=true&has_feature_flag=false) :information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

- The recommended version is **4 versions** ahead of your current version. - The recommended version was released **22 days ago**, on 2022-04-19.

Release notes

Package name: sass

1.50.1 - 2022-04-19
To install Sass 1.50.1, download one of the packages below and add it to your PATH, or see the Sass website for full installation instructions.

Changes

Embedded Sass
- The JS embedded host and the embedded compiler will now properly avoid resolving imports relative to the current working directory unless '.' is passed as a load path.
- Fix a bug in the JS embedded host's implementation of the legacy JS API where imports that began with / could crash on Windows.
See the full changelog for changes in earlier releases.
```
 </li>
 <li>
 1.50.0 - <a href="https://snyk.io/redirect/github/sass/dart-sass/releases/tag/1.50.0">2022-04-07</a>To install Sass 1.50.0, download one of the packages below and <a href="https://katiek2.github.io/path-doc/" rel="nofollow">add it to your PATH</a>, or see <a href="https://sass-lang.com/install" rel="nofollow">the Sass website</a> for full installation instructions.
```
Changes
- @ extend now treats :where() the same as :is().
Command Line Interface
- Closing the standard input stream will now cause the --watch command to stop running.
Embedded Sass
- Fix a bug where the JS embedded host crashed when invoking a legacy importer after resolving a relative filesystem import.
- Improve error messages when returning non-Object values from legacy importers.
See the full changelog for changes in earlier releases.
```
 </li>
 <li>
 1.49.11 - <a href="https://snyk.io/redirect/github/sass/dart-sass/releases/tag/1.49.11">2022-04-01</a>To install Sass 1.49.11, download one of the packages below and <a href="https://katiek2.github.io/path-doc/" rel="nofollow">add it to your PATH</a>, or see <a href="https://sass-lang.com/install" rel="nofollow">the Sass website</a> for full installation instructions.
```
Changes
- Add support for 64-bit ARM releases on Linux.
Embedded Sass
- The embedded compiler now correctly sets the id field for all OutboundMessages.
See the full changelog for changes in earlier releases.
```
 </li>
 <li>
 1.49.10 - <a href="https://snyk.io/redirect/github/sass/dart-sass/releases/tag/1.49.10">2022-03-30</a>To install Sass 1.49.10, download one of the packages below and <a href="https://katiek2.github.io/path-doc/" rel="nofollow">add it to your PATH</a>, or see <a href="https://sass-lang.com/install" rel="nofollow">the Sass website</a> for full installation instructions.
```
Changes
- Quiet deps mode now silences compiler warnings in mixins and functions that are defined in dependencies even if they're invoked from application stylesheets.
- In expanded mode, Sass will now emit colors using rgb(), rbga(), hsl(), and hsla() function notation if they were defined using the corresponding notation. As per our browser support policy, this change was only done once 95% of browsers were confirmed to support this output format, and so is not considered a breaking change.
 
 Note that this output format is intended for human readability and not for interoperability with other tools. As always, Sass targets the CSS specification, and any tool that consumes Sass's output should parse all colors that are supported by the CSS spec.
- Fix a bug in which a color written using the four- or eight-digit hex format could be emitted as a hex color rather than a format with higher browser compatibility.
- Calculations are no longer simplified within supports declarations
See the full changelog for changes in earlier releases.
```
 </li>
 <li>
 1.49.9 - 2022-02-24
 </li>
</ul>
from <a href="https://snyk.io/redirect/github/sass/dart-sass/releases">sass GitHub release notes</a>
```

Commit messages

Package name: sass

fbd450b Cut a release (#1671)
3dbb552 Add a changelog entry for sass/dart-sass-embedded#83 and sass/embedded-host-node#128 (#1668)
039f2ad Add support for :where() (#1662)
c7ab426 Abort sass if stdin is closed when watching (#1411)
db85276 Update the changelog for sass/embedded-host-node#120 (#1663)
d7d3f8f Cut a release (#1659)
6652001 Stop simplifying calculations in supports (#1653)
55157a5 Deploy linux arm64 release to github (#1643)
85ca0b2 Remove dead code in the stylesheet parser (#1640)
0db7ff2 Run formatter directly in grind.dart (#1654)
33f18c4 Preserve rgb/rgba/hsl/hsla formats in expanded mode (#1651)
3abcc20 Silence compiler warnings in dependency callables with --quiet-deps (#1650)