fix(fetch) allow Response to be GC'd before all the request body is received

[cirospaciari]

What does this PR do?

• Documentation or TypeScript types (it's okay to leave the rest blank in this case)
• Code changes

How did you verify your code works?

Added tests

[github-actions]

❌ @cirospaciari, your commit has failing tests :(

💻 2 failing tests Darwin x64 baseline

• test/bundler/large_asset_regression.test.ts 1 failing
• test/cli/install/bun-create.test.ts 2 failing

🪟💻 9 failing tests Windows x64 baseline

• test/cli/install/bunx.test.ts 1 failing
• test/integration/next-pages/test/dev-server-ssr-100.test.ts 1 failing
• test/js/bun/shell/bunshell.test.ts 1 failing
• test/js/bun/shell/commands/rm.test.ts 1 failing
• test/js/node/child_process/child_process.test.ts 1 failing
• test/js/node/dns/node-dns.test.js 2 failing
• test/js/node/process/process.test.js 2 failing
• test/js/node/watch/fs.watchFile.test.ts SIGKILL
• test/js/web/workers/worker.test.ts 2 failing

🪟💻 14 failing tests Windows x64

• test/cli/install/bun-install.test.ts 12 failing
• test/cli/install/bunx.test.ts SIGKILL
• test/cli/install/migration/complex-workspace.test.ts 7 failing
• test/cli/install/migration/migrate.test.ts 1 failing
• test/cli/install/registry/bun-install-registry.test.ts 2 failing
• test/integration/esbuild/esbuild.test.ts 1 failing
• test/js/bun/http/serve-body-leak.test.ts 3 failing
• test/js/bun/shell/bunshell.test.ts 1 failing
• test/js/bun/shell/commands/rm.test.ts 1 failing
• test/js/node/child_process/child_process.test.ts 1 failing
• test/js/node/dns/node-dns.test.js SIGKILL
• test/js/node/process/process.test.js 2 failing
• test/js/node/watch/fs.watchFile.test.ts SIGKILL
• test/js/web/workers/worker.test.ts 2 failing

View logs

[Jarred-Sumner]

serve test still failing