Update versions for v2.5.3

[pjleonard37]

What does this pull request do?

Update iOS version to v11.9.3 and other required updates.

What is the motivation and context behind this change?

Pull request checklist:

• Add a changelog entry.
• Write tests for all new functionality. If tests were not written, please explain why.
• Add documentation comments for any added or updated public APIs.

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[maios]

let's revert change in this? I supposed this is not intentional