[Snyk] Security upgrade fastify from 2.13.0 to 2.15.1

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • backend/package.json
  • backend/package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Issue	Breaking Change	Exploit Maturity
	Denial of Service (DoS) SNYK-JS-FASTIFY-596516	No	No Known Exploit

Commit messages

Package name: fastify

The new version differs by 34 commits.

• 2cfe0df Bumped v2.15.1
• 74c3157 Disable allErrors in default Ajv config.
• 854e150 Revert "correct typings for ready() (#2345)"
• 6de8943 Add `PATCH` to `body` validation (#2351)
• 65d0e5b correct typings for ready() (#2345)
• fd94ad3 Bumped v2.15.0
• 655f28f On ready backport (#2296)
• 12fa714 Fix custom JSON support (#2309)
• 39e2375 Bind error handler to instance (v2) (#2305)
• 6b0ffc6 Bumped v2.14.1
• bbd8265 Tweak haproxy config for issue #2036 (#2270) (#2271)
• 34ba544 Fix: call preHandler on reply.callNotFound (#2256) (#2264)
• f12f487 doc: doc example to use ajv-errors (#2254)
• 6f108c4 Log clientError as trace to avoid dev confusion (#2241) (#2242)
• 0f53a90 Bumped v2.14.0
• faab48f http2: fix HEAD requests hanging (#2233) (#2239)
• c9a101f fix #2214 (#2218)
• 394d0d4 Support builder-style injection (#2209)
• 13595c8 Bumped v2.13.1
• 034e046 Fix for Link in docs/Middleware (#2192)
• 32508fe Fix package-manager CI (#2189)
• 8ba959d Fixes crash when using a non-standard error code (#2184)
• 08e0a04 ignore fast-json-stringify in dependabot
• cd0e639 Add google cloud trace API plugin (#2185)

See the full diff

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