feat: adapt gas estimation to reduce 120% safety buffer

[byte-bandit]

Related Github tickets

• https://github.com/VolumeFi/paloma/issues/2089

Background

This change addresses the inflated estimate that used to include a 1.2 modifier applied to the limit in as a security margin.

Testing completed

• [x] test coverage exists or has been added/updated
• [x] tested in a private testnet

Breaking changes

• [x] I have checked my code for breaking changes