Fix suffix check for archive extraction

[aidy1991]

Ref #65
Sorry, I noticed that implementation of #65 allows invalid file name like hoge.aazip because we check extension by backward matching and compared extension does not include ..

This PR will resolve this problem.

[github-actions]

👈 Launch a binder notebook on branch aidy1991/jupyter-archive/fix-suffix-check

[fcollonval]

Thanks for testing that quickly. Could you also add test for this?

[aidy1991]

Would it be better to add a new test case (test function) to test that it fails with a file name like archive.aazip?
Alternatively, we can use parameterize to add it to an existing test case, I think.

[fcollonval]

I would add a new test_extract_archive_failure or something like that sounds better.

[aidy1991]

Thank you for you advice! I'll try to add it.

[fcollonval]

Thanks for adding the test. I left one suggestion and a question.

[fcollonval]

Thanks a lot @aidy1991 to quickly react on the comments.

[aidy1991]

Thank you for your review!!