Improved hindi translation for 'ago'

[aruhant]

What does this PR do?

This PR fixes the Hindi translation for 'ago' पूर्व is a better hindi translation for 'ago'. The current word पहले means 'before' and not 'ago'.

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Maintenance change (non-breaking change such as upgrading a dependency, refactoring, or making a lint fix)
• [ ] Documentation update
• [ ] Breaking change (a fix or feature that would cause existing functionality to change)

Checklist

• [x] Wrote additional tests, if needed
• [x] All tests have passed, you can find the scripts from the ./bin folder
• [x] I have updated the documentation accordingly, if needed.

Additional Information

Reference to Hindi dictionary, that explains why this is a better translation: https://www.collinsdictionary.com/hi/dictionary/hindi-english/%E0%A4%AA%E0%A5%82%E0%A4%B0%E0%A5%8D%E0%A4%B5

Also, I am a native and profecient Hindi speaker.

[jama5262]

Thanks for your contribution @aruhant

Please update also test