Fastify 5.2.1 release notes

chore: org members reorder by @Eomm in https://github.com/fastify/fastify/pull/5898
docs(request): clarify request host functionality by @Fdawgs in https://github.com/fastify/fastify/pull/5904
chore(package): add fdawgs to contributors array by @Fdawgs in https://github.com/fastify/fastify/pull/5905
chore: updated test reporter by @jsumners in https://github.com/fastify/fastify/pull/5907
test: migrated custom-parser.2.test.js from tap to node:test by @Tony133 in https://github.com/fastify/fastify/pull/5902
test: migrated nullable-validation.test.js from tap to node:test by @Tony133 in https://github.com/fastify/fastify/pull/5880
test: migrated custom-parser.3.test.js from tap to node:test by @Tony133 in https://github.com/fastify/fastify/pull/5903
test: migrate delete test from tap to node test runner by @Kalpana98 in https://github.com/fastify/fastify/pull/5906
docs: add climba03003 to team by @climba03003 in https://github.com/fastify/fastify/pull/5910
build(deps): replace proxy-addr with @fastify/proxy-addr by @Fdawgs in https://github.com/fastify/fastify/pull/5913
fix: ReadableStream.locked crashes application by @climba03003 in https://github.com/fastify/fastify/pull/5920
docs: fix typo by @FKPSC in https://github.com/fastify/fastify/pull/5921

Full Changelog: https://github.com/fastify/fastify/compare/v5.2.0...v5.2.1