Adding Hexadecimal to Octal Conversion in Conversions

[Abhishek-Rajput-81]

Feature description

I would like to request the addition of a hexadecimal to octal conversion feature.
please assign this job to me
Thank you

[tianyizheng02]

Read our contributing guidelines: do not open issues to propose new algorithms. We also don't assign issues in this repo. If you want to contribute an algorithm, just open a PR.