fix: use fastlz sizes for tracking da usage

[danyalprout]

📝 Summary

This PR has a couple of changes:

• Use the FastLZ size of transactions to verify per tx and per block DA limits. This matches the op-geth sequencer behaviour. See this issue for more details on how op-geth behaves.
• Track cumulative da bytes used

💡 Motivation and Context

Without this change:

• The DA limiting is based on the uncompressed transaction size, which will result in needlessly throttling very compressible transactions.
• Throttling does not take into account the amount of bytes currently being used in the block

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✅ I have completed the following steps:

• Run make lint
• Run make test
• Added tests (if applicable)

[danyalprout]

Closing in favor of flashbots/op-rbuilder#7