[TASK] Update Tailwind CSS to v4.0.6

| datasource | package              | from  | to    |
| ---------- | -------------------- | ----- | ----- |
| npm        | @tailwindcss/postcss | 4.0.5 | 4.0.6 |
| npm        | tailwindcss          | 4.0.5 | 4.0.6 |

package.json

@@ -16,7 +16,7 @@
 		"@babel/preset-env": "7.26.8",
 		"@eslint/js": "9.20.0",
 		"@symfony/webpack-encore": "5.0.1",
-		"@tailwindcss/postcss": "4.0.5",
+		"@tailwindcss/postcss": "4.0.6",
 		"autoprefixer": "10.4.20",
 		"depcheck": "1.4.7",
 		"eslint": "9.20.0",
@@ -26,7 +26,7 @@
 		"postcss-loader": "8.1.1",
 		"stylelint": "16.14.1",
 		"stylelint-config-standard": "37.0.0",
-		"tailwindcss": "4.0.5",
+		"tailwindcss": "4.0.6",
 		"tailwindcss-crossbrowser-touch": "1.1.2",
 		"tailwindcss-selection-variant": "0.1.0",
 		"webpack": "5.97.1",