feat(storage): add queryParams support to download method

[grdsdev]

Description

This PR adds support for custom query parameters in the download method of the storage client.

Changes

• Added optional queryParams parameter to the download method in StorageFileApi
• Query parameters are merged with transform query parameters (if any)
• Added test case to verify query params are correctly passed to the request
• Enhanced CustomHttpClient test helper to track received requests and make status code configurable

Testing

• Added unit test should download public file with query params that verifies query parameters are correctly included in the download request

Example Usage

final response = await client
    .from('public_bucket')
    .download('b.txt', queryParams: {'version': '1'});

[coveralls]

Pull Request Test Coverage Report for Build 20305880890

Details

• 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.004%) to 79.933%

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Totals
Change from base Build 20270238886:	0.004%
Covered Lines:	3362
Relevant Lines:	4206

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💛 - Coveralls