Add logic to calculate gas deviation based on fitted curve

[ogtownsend]

Description

• Adds a new function DeviatesOnGasCurve() to CCIP calc to have a more flexible gas deviation threshold based on a sliding log scale
• This new gas curve function will output larger deviation thresholds for smaller (in USD terms) gas prices, and smaller deviation thresholds for higher gas prices

Motivation

• It doesn't provide much value to publish a gas update when the gas price changes from $0.00000001 to $0.00000004, all it does it cause us to spend more on publishing these gas updates

[github-actions]

I see you updated files related to core. Please run pnpm changeset in the root directory to add a changeset as well as in the text include at least one of the following tags:

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[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube