Fixed CVE security problem

[wenzhixin]

🤔Type of Request

• Bug fix
• New feature
• Improvement
• Documentation
• Other

📝Changelog
Fixed CVE security problem

• Core
• Extensions

💡Example(s)?
Before: https://live.bootstrap-table.com/code/wenzhixin/9594
After: https://live.bootstrap-table.com/code/wenzhixin/9595

CVE problem: https://nvd.nist.gov/vuln/detail/CVE-2021-23472

This affects all versions of package bootstrap-table. A type confusion vulnerability can lead to a bypass of input sanitization when the input provided to the escapeHTML function is an array (instead of a string) even if the escape attribute is set.

Ref:

• https://github.com/component/escape-html/blob/master/index.js
• https://stackoverflow.com/questions/40263803/native-javascript-or-es6-way-to-encode-and-decode-html-entities

☑️Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Changelog is provided or not needed