fix: packages/pluggable-widgets-tools/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-MINIMATCH-15309438
- https://snyk.io/vuln/SNYK-JS-MINIMATCH-15353389

Author: snyk-bot

packages/pluggable-widgets-tools/package.json

@@ -81,7 +81,7 @@
     "mime": "^4.1.0",
     "postcss": "^8.5.10",
     "postcss-import": "^14.0.2",
-    "postcss-url": "^10.1.0",
+    "postcss-url": "^10.1.4",
     "prettier": "^2.5.1",
     "react-test-renderer": "^19.2.5",
     "recursive-copy": "^2.0.11",