[TIMOB-25051] fix persistentObjects leak

[drauggres]

https://jira.appcelerator.org/browse/TIMOB-25051

var handle1 = new PersistentHandle({'foo': 'first'});
var handle2 = new PersistentHandle({'foo': 'second'});
handle1.dispose(); 
handle2.dispose(); // here was leak;  persistentObjects:  [ { foo: 'second' } ]

[sgtcoolguy]

CR LGTM 👍
I assume you're doing an FR/testing @garymathews ?

[garymathews]

FT: PASS

[build]

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📖	🎉 Another contribution from our awesome community member, drauggres! Thanks again for helping us make Titanium SDK better. 👍

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[mukherjee2]

FR Passed.