Bump postcss from 8.5.5 to 8.5.6

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.5 to 8.5.6.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.5...8.5.6)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -20,7 +20,7 @@
     "exports-loader": "^1.1.1",
     "jquery": "^3.7.1",
     "popper.js": "^1.16.1",
-    "postcss": "^8.5.5",
+    "postcss": "^8.5.6",
     "rails-ujs": "^5.2.8",
     "resolve-url-loader": "^5.0.0",
     "turbolinks": "^5.2.0"

yarn.lock

@@ -6906,10 +6906,10 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2
     picocolors "^0.2.1"
     source-map "^0.6.1"
 
-postcss@^8.2.14, postcss@^8.4.21, postcss@^8.4.28, postcss@^8.4.32, postcss@^8.5.5:
-  version "8.5.5"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.5.tgz#04de7797f6911fb1c96550e96616d08681537ef3"
-  integrity sha512-d/jtm+rdNT8tpXuHY5MMtcbJFBkhXE6593XVR9UoGCH8jSFGci7jGvMGH5RYd5PBJW+00NZQt6gf7CbagJCrhg==
+postcss@^8.2.14, postcss@^8.4.21, postcss@^8.4.28, postcss@^8.4.32, postcss@^8.5.6:
+  version "8.5.6"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.6.tgz#2825006615a619b4f62a9e7426cc120b349a8f3c"
+  integrity sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==
   dependencies:
     nanoid "^3.3.11"
     picocolors "^1.1.1"