SWAIG: Fix fastify vulnerability

[iAmmar7]

Description

Fix the fastify vulnerability under the SWAIG package.

ref: https://github.com/signalwire/signalwire-js/security/dependabot/60

Type of change

• [x] Internal refactoring
• [ ] Bug fix (bugfix - non-breaking)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Code snippets

In case of new feature or breaking changes, please include code snippets.

[changeset-bot[bot]]

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Latest commit: 7c21bbbbf9d443815b4e77ebb2612b91ae70d1fb

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