fix: update IN phone number regex [ROW-227]

[RgnDunes]

Description

Fixes IN phone number validation regex

Changes Made

List the main changes made in this pull request.

Title	---
JIRA link	https://razorpay.atlassian.net/browse/ROW-227
Slack thread (if any)	https://razorpay.slack.com/archives/C7WEGELHJ/p1741698665577779
Product spec	NA
Tech spec/One-pager	NA
Bundle Size Difference	NA
Fixes Issue	NA

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• This change is a documentation update

How Has This Been Tested?

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• Tested in a consumer application(s) ?

Additional Notes

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Checklist:

• Add Jira ID(s) in PR title and in the description?
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• My code is written in TypeScript and follows the coding standards of the project.
• I have added relevant documentation and updated the README if necessary.
• My commit messages are clear and follow the project's commit message conventions.
• Is any external library added?
• My changes do not introduce any new runtime errors or warnings.
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• Reviewer added (SLA 2 days)

Reviewer Checklist

• Sufficient QA/Dev-Testing is done with proof (test cases list)
• Ensure that the change in bundle size falls within the acceptable range.

---

PR Title Format

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[changeset-bot]

🦋 Changeset detected

Latest commit: dafe166

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@razorpay/i18nify-js	Patch

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[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.57%. Comparing base (8637478) to head (dafe166).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #218   +/-   ##
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  Coverage   97.57%   97.57%           
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  Files          54       54           
  Lines         741      741           
  Branches      177      177           
=======================================
  Hits          723      723           
  Misses         18       18           

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