Bump postcss from 8.2.8 to 8.2.9

Bumps [postcss](https://github.com/postcss/postcss) from 8.2.8 to 8.2.9.
- [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/8.2.8...8.2.9)

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

package-lock.json

@@ -11529,13 +11529,13 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.2.8",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.8.tgz",
-      "integrity": "sha512-1F0Xb2T21xET7oQV9eKuctbM9S7BC0fetoHCc4H13z0PT6haiRLP4T0ZY4XWh7iLP0usgqykT6p9B2RtOf4FPw==",
+      "version": "8.2.9",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.9.tgz",
+      "integrity": "sha512-b+TmuIL4jGtCHtoLi+G/PisuIl9avxs8IZMSmlABRwNz5RLUUACrC+ws81dcomz1nRezm5YPdXiMEzBEKgYn+Q==",
       "dev": true,
       "requires": {
         "colorette": "^1.2.2",
-        "nanoid": "^3.1.20",
+        "nanoid": "^3.1.22",
         "source-map": "^0.6.1"
       },
       "dependencies": {
@@ -11544,6 +11544,12 @@
           "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
           "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
           "dev": true
+        },
+        "nanoid": {
+          "version": "3.1.22",
+          "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.22.tgz",
+          "integrity": "sha512-/2ZUaJX2ANuLtTvqTlgqBQNJoQO398KyJgZloL0PZkC0dpysjncRUPsFe3DUPzz/y3h+u7C46np8RMuvF3jsSQ==",
+          "dev": true
         }
       }
     },

package.json

@@ -31,7 +31,7 @@
     "@types/react-calendar": "^3.1.4",
     "@types/uuid": "^8.3.0",
     "jest": "^26.6.3",
-    "postcss": "^8.2.8",
+    "postcss": "^8.2.9",
     "postcss-flexbugs-fixes": "^5.0.2",
     "postcss-preset-env": "^6.7.0",
     "swr": "^0.5.5",