fix(p2p): a few minor code inspection fixes #18393

[gzliudan]

Proposed changes

Ref: ethereum#18393

Types of changes

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• Bugfix (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)
• Documentation Update (if none of the other choices apply)
• Regular KTLO or any of the maintaince work. e.g code style
• CICD Improvement

Impacted Components

Which part of the codebase this PR will touch base on,

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• Consensus
• Account
• Network
• Geth
• Smart Contract
• External components
• Not sure (Please specify below)

Checklist

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• This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
• Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
• Relevant documentation has been updated as part of this PR
• N/A

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[Copilot]

Pull request overview

This PR addresses minor code quality improvements in the p2p package, focusing on spelling corrections, variable naming conventions, and test helper improvements.

Changes:

• Fixed spelling errors in comments ("connectiton" → "connection", "mokcer" → "mocker", "whataver" → "whatever")
• Renamed variable from snake_case to camelCase (nodes_info → nodesInfo) following Go conventions
• Added t.Helper() to test helper function for better test failure reporting

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
p2p/simulations/network.go	Fixed typo in comment: "connectiton" → "connection"
p2p/simulations/mocker_test.go	Fixed typo in comment "mokcer" → "mocker" and renamed variable nodes_info → nodesInfo (4 occurrences)
p2p/simulations/http_test.go	Added t.Helper() to testHTTPServer test helper function
p2p/simulations/adapters/exec.go	Fixed typo in comment: "whataver" → "whatever"

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