Validate phone format 123 234 5678 no regex

[SachinNarayanasamy]

PR Description:

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Pull Request Checklist

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[SachinNarayanasamy]

Hi @ravichandra1998g ,
Is it okay now or any changes needed further, please let me know.

[ravichandra1998g]

looks good now.
Thank you for making the changes

[SachinNarayanasamy]

Hi @ravichandra1998g ,
Thank you so much, Ravi, for all the guidance and support you have provided. Your valuable suggestions have made a significant impact on my developer journey in ServiceNow and helped me understand GitHub functionalities much better. I truly appreciate your mentorship, and this experience has made my journey in ServiceNow both memorable and inspiring.
Thanks!