fix: #106042 update dom purify to fix regex vulenarability

[vj-venkatesan]

Fixes 106042

Success Criteria

• Dom purify is udpated
• Santize should work as expected

How to test

1. Chat with an endpoint with html content with insecure javascript in say nodes
2. Expect the messages to be sanitized and rendered correctly

[graymalkin77]

🎉 Snyk checks have passed. No issues have been found so far.

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[vj-venkatesan]

https://github.com/Cognigy/WebchatWidget/pull/480/files#diff-7ae45ad102eab3b6d7e7896acd08c427a9b25b346470d7bc6507b6481575d519L55

Relevant change in this file rest is format changes