[hi] Localize /docs/tasks/network page

[aryasoni98]

Description

This pull request localizes the documentation pages under /docs/tasks/network/ into Hindi. It includes the translation of the following files:

• _index.md
• customize-hosts-file-for-pods.md
• extend-service-ip-ranges.md
• reconfigure-default-service-ip-ranges.md
• validate-dual-stack.md

Issue

Closes: #50277

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[jayeshmahajan]

@aryasoni98 Please do 1 or 2 pages max at a time to its easier to review, close, merge and roll back.

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