Download zig from oven-sh/zig releases & auto set up zls

[pfgithub]

What does this PR do?

Downloads zig from https://github.com/oven-sh/zig/releases automatically

These releases include zls, so updates vscode settings to use zls from vendor/zig/zls.exe in order to not require manual zls setup

Does not require deleting the build folder because the optionx for ZIG_COMMIT is changed to set. optionx will save its default value into the cache after the first run, and not clear it until the cache is deleted.

[robobun]

^{Updated 6:25 PM PT - Feb 10th, 2025}

❌ @pfgithub, your commit eabf1ba has 4 failures in Build #11402:

• test/js/bun/http/serve-body-leak.test.ts - 5 failing on 🐧 3.20 x64-baseline
• test/cli/install/bun-install-patch.test.ts - internal assertion failure on 🪟 2019 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🪟 2019 x64-baseline
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🪟 2019 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🍎 14 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🍎 13 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 22.04 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 12 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 20.04 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 24.04 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🍎 13 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 3.20 aarch64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🍎 14 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 12 x64-baseline
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 24.04 x64-baseline
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 20.04 x64-baseline
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 22.04 x64-baseline
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 22.04 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 12 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 24.04 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 20.04 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 3.20 x64
• test/js/bun/css/doesnt_crash.test.ts - 12 failing on 🐧 3.20 x64-baseline
• test/cli/create/create-jsx.test.ts - 2 failing on 🪟 2019 x64-baseline
• test/cli/create/create-jsx.test.ts - 2 failing on 🪟 2019 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🍎 14 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🍎 13 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🍎 13 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 22.04 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 24.04 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 12 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 20.04 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🍎 14 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 3.20 aarch64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 12 x64-baseline
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 20.04 x64-baseline
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 24.04 x64-baseline
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 22.04 x64-baseline
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 12 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 22.04 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 24.04 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 20.04 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 3.20 x64
• test/cli/create/create-jsx.test.ts - 2 failing on 🐧 3.20 x64-baseline

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🧪   try this PR locally:

bunx bun-pr 17128