Merge pull request #1847 from hideo54/dependabot/npm_and_yarn/postcss-8.5.18

Bump postcss from 8.5.16 to 8.5.18

Author: hideo54

package-lock.json

@@ -46,7 +46,7 @@
         "cheerio": "^1.2.0",
         "dotenv": "^17.4.2",
         "lodash": "^4.18.1",
-        "postcss": "^8.5.16",
+        "postcss": "^8.5.18",
         "tailwindcss": "^4.3.2",
         "tsx": "^4.23.0",
         "typescript": "^5.9.3",