build(deps): bump clean-css from 5.3.0 to 5.3.2 in /src (#5742)

Bumps [clean-css](https://github.com/clean-css/clean-css) from 5.3.0 to 5.3.2.
- [Changelog](https://github.com/clean-css/clean-css/blob/master/History.md)
- [Commits](https://github.com/clean-css/clean-css/compare/v5.3.0...v5.3.2)

---
updated-dependencies:
- dependency-name: clean-css
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/package-lock.json

@@ -1467,9 +1467,9 @@
       "optional": true
     },
     "clean-css": {
-      "version": "5.3.0",
-      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.3.0.tgz",
-      "integrity": "sha512-YYuuxv4H/iNb1Z/5IbMRoxgrzjWGhOEFfd+groZ5dMCVkpENiMZmwspdrzBo9286JjM1gZJPAyL7ZIdzuvu2AQ==",
+      "version": "5.3.2",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.3.2.tgz",
+      "integrity": "sha512-JVJbM+f3d3Q704rF4bqQ5UUyTtuJ0JRKNbTKVEeujCCBoMdkEi+V+e8oktO9qGQNSvHrFTM6JZRXrUvGR1czww==",
       "requires": {
         "source-map": "~0.6.0"
       }

src/package.json

@@ -31,7 +31,7 @@
   ],
   "dependencies": {
     "async": "^3.2.2",
-    "clean-css": "^5.3.0",
+    "clean-css": "^5.3.2",
     "cookie-parser": "^1.4.6",
     "cross-spawn": "^7.0.3",
     "ejs": "^3.1.7",