Bump color-string from 1.5.3 to 1.9.1 in /css

Bumps [color-string](https://github.com/Qix-/color-string) from 1.5.3 to 1.9.1.
- [Release notes](https://github.com/Qix-/color-string/releases)
- [Changelog](https://github.com/Qix-/color-string/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Qix-/color-string/commits/1.9.1)

---
updated-dependencies:
- dependency-name: color-string
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

css/yarn.lock

@@ -728,15 +728,20 @@ color-convert@^1.9.0, color-convert@^1.9.1:
   dependencies:
     color-name "1.1.3"
 
-[email protected], color-name@^1.0.0:
+[email protected]:
   version "1.1.3"
   resolved "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz"
   integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
 
+color-name@^1.0.0:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
+  integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
+
 color-string@^1.5.2:
-  version "1.5.3"
-  resolved "https://registry.npmjs.org/color-string/-/color-string-1.5.3.tgz"
-  integrity sha512-dC2C5qeWoYkxki5UAXapdjqO672AM4vZuPGRQfO8b5HKuKGBbKWpITyDYN7TOFKvRW7kOgAn3746clDBMDJyQw==
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.9.1.tgz#4467f9146f036f855b764dfb5bf8582bf342c7a4"
+  integrity sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg==
   dependencies:
     color-name "^1.0.0"
     simple-swizzle "^0.2.2"
@@ -1870,7 +1875,7 @@ is-arrayish@^0.2.1:
 
 is-arrayish@^0.3.1:
   version "0.3.2"
-  resolved "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.3.2.tgz#4574a2ae56f7ab206896fb431eaeed066fdf8f03"
   integrity sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ==
 
 is-binary-path@^1.0.0:
@@ -3580,8 +3585,8 @@ signal-exit@^3.0.0:
 
 simple-swizzle@^0.2.2:
   version "0.2.2"
-  resolved "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.2.tgz"
-  integrity sha1-pNprY1/8zMoz9w0Xy5JZLeleVXo=
+  resolved "https://registry.yarnpkg.com/simple-swizzle/-/simple-swizzle-0.2.2.tgz#a4da6b635ffcccca33f70d17cb92592de95e557a"
+  integrity sha512-JA//kQgZtbuY83m+xT+tXJkmJncGMTFT+C+g2h2R9uxkYIrE2yy9sgmcLhCnw57/WSD+Eh3J97FPEDFnbXnDUg==
   dependencies:
     is-arrayish "^0.3.1"