Phone Number Validation on Form Submission

[RaviGaurav007]

PR Description:

@RaviGaurav007 - Please add description here

Pull Request Checklist

Overview

• I have read and understood the CONTRIBUTING.md guidelines
• My pull request has a descriptive title that accurately reflects the changes
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• I've created a new branch in my forked repository for this contribution

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• My code is relevant to ServiceNow developers
• My code snippets expand meaningfully on official ServiceNow documentation (if applicable)
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Restrictions

• My PR does not include XML exports of ServiceNow records
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[am-shakeel]

@RaviGaurav007 - Description is missing, Please add

[RaviGaurav007]

@am-shakeel where do you want me to add Description?

[am-shakeel]

We already have regexutils available with the same underlying logic.
The only difference in this case is the regex expression being used, which can be provided as an input to the existing utility method.

Therefore, this appears to be just an example rather than a new enhancement.