Adds support to mark a test file as --todo with {todo: "true"}

[pfgithub]

What does this PR do?

test.todo() is basically just test.skip() with a different name unless you use the --todo flag. This adds the ability to mark specific files to always run todo tests and ensure they fail, so that specific files can opt-in to running todo tests.

// a.test.ts
import { test, expect } from "bun:test" with { todo: "true" };

test.todo("fixme", () => expect(value()).toBe(1));

[robobun]

❌ @pfgithub, your commit dc89d0c has 8 failures in #7715:

test/js/web/fetch/fetch.test.ts - timeout on 🍎 14 x64

test/js/web/fetch/fetch.test.ts - timeout on 🍎 13 x64

test/regression/issue/09041.test.ts - 1 failing on 🐧 3.20 x64-baseline

test/v8/v8.test.ts - 22 failing on 🐧 3.20 aarch64

test/v8/v8.test.ts - 22 failing on 🐧 3.20 x64-baseline

test/v8/v8.test.ts - 22 failing on 🐧 3.20 x64

test/js/bun/util/filesink.test.ts - 1 failing on 🐧 24.04 x64-baseline

test/js/bun/plugin/plugins.test.ts - segmentation fault on 🐧 24.04 x64-baseline

test/cli/hot/hot.test.ts - timeout on 🐧 22.04 aarch64

test/cli/hot/hot.test.ts - timeout on 🐧 22.04 x64

test/cli/hot/hot.test.ts - timeout on 🐧 24.04 x64-baseline

test/cli/hot/hot.test.ts - timeout on 🐧 3.20 aarch64

test/cli/hot/hot.test.ts - timeout on 🐧 3.20 x64-baseline

test/js/third_party/pino/pino.test.js - segmentation fault at address 0x21fca831878 on 🪟 2019 x64-baseline

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🪟 2019 x64

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🪟 2019 x64-baseline