fix: i18next-fs-backend upgrade to 2.6.6 for prototype pollution vuln

[bandhan-majumder]

What does this PR do?

• Fixes #XXXX (GitHub issue number)

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Checklist

• I haven't read the contributing guide
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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 76c8cc28-9869-43ca-b808-743e280169d8

📥 Commits

Reviewing files that changed from the base of the PR and between 62317bd and e75c8a4.

⛔ Files ignored due to path filters (1)

• yarn.lock is excluded by !**/yarn.lock, !**/*.lock

📒 Files selected for processing (1)

• package.json

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📝 Walkthrough

Walkthrough

The resolutions section in package.json is updated to retain the existing brace-expansion@^2.0.2 override and add a new i18next-fs-backend resolution at ^2.6.6. No other scripts or sections are changed.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	The description is mostly template text and placeholder issue text, so it gives little meaningful detail about the change.	Replace the template with a brief summary of the dependency update, the vulnerability addressed, and any testing performed.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly states the security-focused i18next-fs-backend upgrade to 2.6.6, matching the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bandhan/audit-security

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