[Snyk] Security upgrade fastify from 4.9.2 to 5.12.2

[malhanpraveen]

Snyk has created this PR to fix 4 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json
• package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Validation of Specified Type of Input SNYK-JS-FASTIFY-19639041	721
	Improper Validation of Unsafe Equivalence in Input SNYK-JS-FASTIFY-19639042	721
	Authentication Bypass Using an Alternate Path or Channel SNYK-JS-FASTIFY-19639043	721
	Incorrect Behavior Order: Early Validation SNYK-JS-FASTIFY-19639040	716

Breaking Change Risk

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[malhanpraveen]

This major version upgrade from Fastify v4 to v5 introduces significant breaking changes that require code modifications and an environment update.

Key Breaking Changes:

• Node.js Requirement: Fastify v5 drops support for all Node.js versions below v20. An upgrade to Node.js v20 or newer is mandatory. [2, 6]
• Mandatory Full JSON Schema: The shorthand for defining schemas has been removed. You must now provide a full JSON Schema for querystring, params, body, and response, including the type property. The jsonShortHand option has also been removed. [2, 3, 8]
• Removal of Deprecated APIs: All APIs deprecated in v4 are now removed. For example, request.connection must be replaced with request.socket. [2]
• Behavioral Changes: The behavior of some methods has changed. For instance, fastify.hasRoute() now matches the exact route string instead of evaluating a request path. [1] Additionally, the req.params object no longer has a prototype, which may affect how you check for properties (e.g., use Object.hasOwn(req.params, 'name') instead of req.params.hasOwnProperty('name')). [3]

Source: V5 Migration Guide

Recommendation: Before upgrading, ensure your environment is running Node.js v20+. Carefully review the migration guide and update all schema definitions and calls to removed APIs. It is critical to address all deprecation warnings from v4 before attempting this upgrade. [2]

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