Bump postcss from 8.2.7 to 8.2.8 (#3507)

Bumps [postcss](https://github.com/postcss/postcss) from 8.2.7 to 8.2.8.
- [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/8.2.7...8.2.8)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package-lock.json

@@ -7385,9 +7385,9 @@
       "dev": true
     },
     "nanoid": {
-      "version": "3.1.20",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.20.tgz",
-      "integrity": "sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==",
+      "version": "3.1.21",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.21.tgz",
+      "integrity": "sha512-A6oZraK4DJkAOICstsGH98dvycPr/4GGDH7ZWKmMdd3vGcOurZ6JmWFUt0DA5bzrrn2FrUjmv6mFNWvv8jpppA==",
       "dev": true
     },
     "nanomatch": {
@@ -8263,9 +8263,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.2.7",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.7.tgz",
-      "integrity": "sha512-DsVLH3xJzut+VT+rYr0mtvOtpTjSyqDwPf5EZWXcb0uAKfitGpTY9Ec+afi2+TgdN8rWS9Cs88UDYehKo/RvOw==",
+      "version": "8.2.8",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.8.tgz",
+      "integrity": "sha512-1F0Xb2T21xET7oQV9eKuctbM9S7BC0fetoHCc4H13z0PT6haiRLP4T0ZY4XWh7iLP0usgqykT6p9B2RtOf4FPw==",
       "dev": true,
       "requires": {
         "colorette": "^1.2.2",

package.json

@@ -145,7 +145,7 @@
     "node-sass-package-importer": "^5.3.2",
     "nodemon": "^2.0.7",
     "npm-run-all": "^4.1.5",
-    "postcss": "^8.2.7",
+    "postcss": "^8.2.8",
     "postcss-cli": "^8.3.1",
     "postcss-scrollbar": "^0.3.0",
     "rollup": "^2.40.0",