fix: correctly combine address and contract address list in event filter param construction

[Aerilym]

What was wrong?

Related to Issue #3617
Closes #3617

How was it fixed?

See description of #3617

Todo:

• Clean up commit history
• Add or update documentation related to these changes
• Add entry to the release notes

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[Aerilym]

Put a lot of details in the issue #3617 happy to expand on it or add more to this contribution. This just fixed my issue for what I'm doing so thought I'd get the ball rolling

[Aerilym]

I made a change to make sure the final output works if you have address and/or contract_address as a list or string. Also de-duplicated but just using address if they're the same. Also had to do some gymnastics to get the linter to like the type hints, not sure if that resulted in the best solution.

[Aerilym]

The linting is still unhappy, would love some direction on how you want the type hinting to work in this section? as there is no type assertion in if blocks it seems overly strict