chore(deps): bump postcss from 8.5.8 to 8.5.12 in /website (#763)

Author: dependabot[bot]

website/yarn.lock

@@ -15233,13 +15233,13 @@ __metadata:
   linkType: hard
 
 "postcss@npm:^8.4.21, postcss@npm:^8.4.24, postcss@npm:^8.4.33, postcss@npm:^8.5.4":
-  version: 8.5.8
-  resolution: "postcss@npm:8.5.8"
+  version: 8.5.12
+  resolution: "postcss@npm:8.5.12"
   dependencies:
     nanoid: "npm:^3.3.11"
     picocolors: "npm:^1.1.1"
     source-map-js: "npm:^1.2.1"
-  checksum: 10c0/dd918f7127ee7c60a0295bae2e72b3787892296e1d1c3c564d7a2a00c68d8df83cadc3178491259daa19ccc54804fb71ed8c937c6787e08d8bd4bedf8d17044c
+  checksum: 10c0/5baebaf574c567bc1b3d61197f38af4ce5920b8f611c887fb6bc3dcc14af00253c169dbf19897bc889cce0b0d9818ab5eb4ea0caedf02b0bab10da8a43ce8c12
   languageName: node
   linkType: hard