gh-149425: Increase test_write_without_source_date_epoch assertion delta

[edvilme]

This pull request makes a minor adjustment to a test in test_core.py to allow for a slightly larger difference in timestamp values when comparing ZIP file metadata to the current time.

• Increased the allowable delta in the assertAlmostEqual check from 1 to 2 in the test_write_without_source_date_epoch test, to reduce test flakiness due to timing differences. (Lib/test/test_zipfile/test_core.py)

Fixes #149425

• Issue: Up the tolerance for test.test_zipfile.test_core.OtherTests.test_write_without_source_date_epoch #149425

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[python-cla-bot]

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[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[edvilme]

I have made the requested changes; please review again

[bedevere-app]

Thanks for making the requested changes!

@brettcannon: please review the changes made to this pull request.

[miss-islington-app]

Thanks @edvilme for the PR, and @brettcannon for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

[miss-islington-app]

Sorry, @edvilme and @brettcannon, I could not cleanly backport this to 3.13 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 17975f92edd2a6a84549e19f683f78a96992ec80 3.13

[bedevere-app]

GH-149433 is a backport of this pull request to the 3.14 branch.