fix(builder): filter fee before filtering by gas limit

[dancoombs]

Proposed Changes

• Filter UOs by fee before applying the bundle gas limit
• Before, if there are a lot of underpriced UOs (specifically by base fee or PVG, as they're sorted by priority fee) then they'll block correctly priced UOs from making it to the simulation stage.
• Now, we filter by fee prior to filtering by gas limit. It does add an extra async step, but will improve when we're doing gas limiting.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 74.00000% with 13 lines in your changes are missing coverage. Please review.

Project coverage is 55.25%. Comparing base (7cc3f5f) to head (a7e5972).

Additional details and impacted files

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