chore: update get transaction query params - #25

What is this PR doing?

This pull request enhances the transaction filtering capabilities of the get_transactions API, improves parameter validation, and updates integration and unit tests to ensure correct behavior for new and modified filters. The changes focus on allowing multi-status filtering, adding support for filtering transactions missing expense categories, and date filtering consistency. Additionally, parameter names and documentation are made more consistent.

API Filtering Improvements:

• The status filter in get_transactions now accepts a sequence of statuses (e.g., multiple status values), and validates all provided values, raising a clear error for any invalid status. [1] [2]
• Added the missing_expense_categories filter, allowing users to retrieve transactions missing required expense categories. [1] [2] [3]
• Renaming parameters (fromDate/toDate → since/until) for consistency with api and updating integration tests to validate date range queries. [1] [2]

Parameter and Documentation Consistency:

• Updated parameter names in the API request (perPage, since, until, etc.) and improved docstrings to accurately describe filter options and expected types. [1] [2] [3] [4]

Testing Enhancements:

• Added new unit tests for the receipt_missing and missing_expense_categories filters to ensure correct API parameter mapping.
• Expanded integration tests to cover multi-status filtering and date range filtering, ensuring the API behaves as expected for these scenarios.

Version Update:

• Bumped the package version to 1.2.2 to reflect the new features and improvements.

Why do we need these changes?

Explain the reasoning behind these changes (feature, bug-fix, performance improvement, etc)

Additional Notes

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