Add `--continue-on-error` in the `css-lint` script. (#29119)

package.json

@@ -30,7 +30,7 @@
     "css-compile": "npm-run-all --parallel css-compile-*",
     "css-compile-main": "node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 scss/ -o dist/css/ && npm run css-copy",
     "css-compile-docs": "cross-env-shell node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 site/docs/$npm_package_version_short/assets/scss/docs.scss site/docs/$npm_package_version_short/assets/css/docs.min.css",
-    "css-lint": "npm-run-all --parallel css-lint-*",
+    "css-lint": "npm-run-all --continue-on-error --parallel css-lint-*",
     "css-lint-main": "stylelint \"scss/**/*.scss\" --cache --cache-location .cache/.stylelintcache",
     "css-lint-docs": "stylelint \"site/docs/**/assets/scss/*.scss\" \"site/docs/**/*.css\" --cache --cache-location .cache/.stylelintcache",
     "css-lint-vars": "fusv scss/ site/docs/",