build: add npmignore

[blimmer]

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

This PR removes test files and GitHub workflows from the NPM package.

Before

 /tmp/ajv-compiler   main  npm pack
npm notice
npm notice 📦  @fastify/ajv-compiler@3.3.1
npm notice === Tarball Contents ===
npm notice 771B  .github/.stale.yml
npm notice 273B  .github/dependabot.yml
npm notice 223B  .github/tests_checker.yml
npm notice 292B  .github/workflows/ci.yml
npm notice 1.2kB LICENSE
npm notice 7.2kB README.md
npm notice 841B  index.d.ts
npm notice 2.8kB index.js
npm notice 1.5kB package.json
npm notice 1.6kB standalone.js
npm notice 0B    test/.gitkeep
npm notice 1.6kB test/duplicated-id-compile.test.js
npm notice 6.5kB test/index.test.js
npm notice 5.7kB test/plugins.test.js
npm notice 4.1kB test/standalone.test.js
npm notice 1.2kB test/types/index.test.ts
npm notice 0B    types/.gitkeep
npm notice === Tarball Details ===
npm notice name:          @fastify/ajv-compiler
npm notice version:       3.3.1
npm notice filename:      @fastify/ajv-compiler-3.3.1.tgz
npm notice package size:  10.0 kB
npm notice unpacked size: 35.8 kB
npm notice shasum:        84e12150abf9e05439af68ec37044abdafbd2b5a
npm notice integrity:     sha512-Pt4Q7ZpuyRDdP[...]PMxm5YvvfTKSw==
npm notice total files:   17
npm notice

After

/tmp/ajv-compiler   fix/add-npmignore  npm pack
npm notice
npm notice 📦  @fastify/ajv-compiler@3.3.1
npm notice === Tarball Contents ===
npm notice 1.2kB LICENSE
npm notice 7.2kB README.md
npm notice 841B  index.d.ts
npm notice 2.8kB index.js
npm notice 1.5kB package.json
npm notice 1.6kB standalone.js
npm notice 0B    types/.gitkeep
npm notice === Tarball Details ===
npm notice name:          @fastify/ajv-compiler
npm notice version:       3.3.1
npm notice filename:      @fastify/ajv-compiler-3.3.1.tgz
npm notice package size:  5.4 kB
npm notice unpacked size: 15.0 kB
npm notice shasum:        5da18f5f7b6ce70f11a3f080ee49c6947f59e40b
npm notice integrity:     sha512-XAXrUoW5b1Ihf[...]ceVUpiul6hWVg==
npm notice total files:   7
npm notice

[Eomm]

We should copy-paste the .gitignore file here or the local .vscode/ directory would be released.

Could you restore the test/ folder?
It is an org policy to ship it within the npm package.

[Uzlopak]

We had this discussion multiple times. And we concluded, that we dont use .npmignore nor files option in package.json. We basically ship everything

@mcollina
@jsumners

[jsumners]

@Uzlopak do you recall where the last conversation took place between myself and you? I'd rather link to my summary than repeat it.

[Uzlopak]

@jsumners
fastify/skeleton#42

[jsumners]

@jsumners fastify/skeleton#42

🤣 that's why I couldn't find it. I thought it was you and I that had the dicussion, but it was actually @Fdawgs.

[jsumners]

Thank you for your interest in this topic. Please see the discussion in fastify/skeleton#42 (comment) for my reasoning against such a change.

---

Above is my new canned response for these.