Bump postcss from 8.3.4 to 8.3.6

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.4 to 8.3.6.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.3.4...8.3.6)

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

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

package-lock.json

@@ -9991,9 +9991,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.3.4",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.4.tgz",
-      "integrity": "sha512-/tZY0PXExXXnNhKv3TOvZAOUYRyuqcCbBm2c17YMDK0PlVII3K7/LKdt3ScHL+hhouddjUWi+1sKDf9xXW+8YA==",
+      "version": "8.3.6",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.6.tgz",
+      "integrity": "sha512-wG1cc/JhRgdqB6WHEuyLTedf3KIRuD0hG6ldkFEZNCjRxiC+3i6kkWUUbiJQayP28iwG35cEmAbe98585BYV0A==",
       "dev": true,
       "requires": {
         "colorette": "^1.2.2",
@@ -10002,9 +10002,9 @@
       },
       "dependencies": {
         "colorette": {
-          "version": "1.2.2",
-          "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
-          "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.3.0.tgz",
+          "integrity": "sha512-ecORCqbSFP7Wm8Y6lyqMJjexBQqXSF7SSeaTyGGphogUjBlFP9m9o08wy86HL2uB7fMTxtOUzLMk7ogKcxMg1w==",
           "dev": true
         }
       }

package.json

@@ -34,7 +34,7 @@
     "eslint": "^7.30.0",
     "eslint-config-next": "^11.0.0",
     "jest": "^26.6.3",
-    "postcss": "^8.3.4",
+    "postcss": "^8.3.6",
     "postcss-flexbugs-fixes": "^5.0.2",
     "postcss-preset-env": "^6.7.0",
     "swr": "^0.5.6",