Update dependency postcss-load-config to v6 (#363)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/ui/package.json

@@ -23,7 +23,7 @@
     "autoprefixer": "^10.4.2",
     "path-browserify": "^1.0.1",
     "postcss": "^8.2.8",
-    "postcss-load-config": "^5.0.0",
+    "postcss-load-config": "^6.0.0",
     "rollup": "^4.0.0",
     "rollup-plugin-livereload": "^2.0.0",
     "rollup-plugin-styles": "^4.0.0",

yarn.lock

@@ -4240,13 +4240,12 @@ postcss-load-config@^4.0.1:
     lilconfig "^3.0.0"
     yaml "^2.3.4"
 
-postcss-load-config@^5.0.0:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-5.0.3.tgz#f4927637d907de900c4828615077646844545820"
-  integrity sha512-90pBBI5apUVruIEdCxZic93Wm+i9fTrp7TXbgdUCH+/L+2WnfpITSpq5dFU/IPvbv7aNiMlQISpUkAm3fEcvgQ==
+postcss-load-config@^6.0.0:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-6.0.1.tgz#6fd7dcd8ae89badcf1b2d644489cbabf83aa8096"
+  integrity sha512-oPtTM4oerL+UXmx+93ytZVN82RrlY/wPUV8IeDxFrzIjXOLF1pN+EmKPLbubvKHT2HC20xXsCAH2Z+CKV6Oz/g==
   dependencies:
-    lilconfig "^3.0.0"
-    yaml "^2.3.4"
+    lilconfig "^3.1.1"
 
 postcss-merge-longhand@^5.1.7:
   version "5.1.7"