Bump postcss from 8.2.7 to 8.2.8

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>

package-lock.json

@@ -9549,9 +9549,9 @@
             "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

@@ -70,7 +70,7 @@
         "gulp-typescript": "^6.0.0-alpha.1",
         "gulp-zip": "^5.0.2",
         "merge-stream": "^2.0.0",
-        "postcss": "^8.2.7",
+        "postcss": "^8.2.8",
         "sass": "^1.32.8",
         "terser": "^5.6.0",
         "tsify": "^5.0.2",