⏫ Forwardport of #11084 to 2.3-develop branch

Applied pull request patch https://github.com/magento/magento2/pull/11084.patch (created by @rubenRP) based on commit(s):
  1. 6e5c8f0
  2. 6be8769

Fixed GitHub Issues in 2.3-develop branch:
  - #9920: stripped-min-length Validation via UI Component Fails with "special" characters (reported by @bap14)

app/code/Magento/Ui/view/base/web/js/lib/validation/rules.js

@@ -244,7 +244,7 @@ define([
         ],
         'stripped-min-length': [
             function (value, param) {
-                return $(value).text().length >= param;
+                return _.isUndefined(value) || value.length === 0 || utils.stripHtml(value).length >= param;
             },
             $.mage.__('Please enter at least {0} characters')
         ],