Update StyleX packages to 0.18.3

Author: martinbooth

package-lock.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "@babel/core": "^7.26.8",
-    "@stylexjs/babel-plugin": "^0.15.4",
+    "@stylexjs/babel-plugin": "^0.18.3",
     "fast-glob": "^3.3.2",
     "glob-parent": "^6.0.2",
     "is-glob": "^4.0.3"

packages/postcss-react-strict-dom/package.json

@@ -38,8 +38,8 @@
   },
   "dependencies": {
     "@babel/helper-module-imports": "^7.24.7",
-    "@stylexjs/babel-plugin": "^0.15.4",
-    "@stylexjs/stylex": "^0.15.4",
+    "@stylexjs/babel-plugin": "^0.18.3",
+    "@stylexjs/stylex": "^0.18.3",
     "postcss-value-parser": "^4.1.0",
     "postcss-react-strict-dom": "0.0.55",
     "styleq": "^0.2.1"