using node:timers setImmediate

[danyg]

instead of relying on the global provided one as is deprecated in some systems

setImmediate has been deprecated in the WebAPI so is not present in some systems (jest / mocha to name a few)

This PR rely on using the provided node:timers setImmediate (which is provided since node v0.9) instead, so yauzl can be agnostic and won't require consumers to set a polyfill to be able to use the library.

[Copilot]

Pull request overview

This PR updates yauzl to use setImmediate from the node:timers module instead of relying on the global setImmediate, which has been deprecated in the Web API and is not available in some testing environments like Jest and Mocha.

Changes:

• Imports setImmediate from node:timers module in index.js and fd-slicer.js
• Adds a test to verify the library works when global setImmediate is undefined
• Applies code formatting changes throughout the test file (spacing adjustments for consistency)

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
index.js	Imports setImmediate from node:timers module at the top and applies formatting fixes to function expressions
fd-slicer.js	Imports setImmediate from node:timers module at the top and applies formatting fixes to function expressions
test/test.js	Sets global setImmediate to undefined to simulate environments without it, and applies extensive formatting changes to ensure consistency

Comments suppressed due to low confidence (1)

index.js:637

• Avoid automated semicolon insertion (95% of all statements in the enclosing function have an explicit semicolon).

          var hundredNanoSecondsSince1601 = 4294967296 * data.readInt32LE(cursor + 4) + data.readUInt32LE(cursor)

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[danyg]

Formatting changes removed!