Add test case with additional collection for commonCards method

[rabestro]

pull request

https://forum.exercism.org/t/gotta-snatch-em-all-wrong-solution-pass-all-tests/36533/5

Summary

• Improved the tests for the GottaSnatchEmAll exercise to catch faulty implementations of the commonCards method.

Changes

• Updated testCommonCardsMultipleCollections in GottaSnatchEmAllTest.java by re-ordering the input collections.
• The new order ensures that a card present in the first two sets but not the third will be incorrectly identified as a common card by a faulty implementation that only checks adjacent sets.

Verification

• Verified that the reference implementation passes all tests, including the updated one, using the project's test runner.

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