Protect against passing i128::MIN to abs() which causes overflow (#…

…2241)

## Linked Issues
Closes #2210

## Description
This PR uses `saturating_abs()` instead of "raw" `abs()` inside the
`da_change()` to prevent overflow on `i128::MIN`.

### Before requesting review
- [X] I have reviewed the code myself

---------

Co-authored-by: Mitchell Turner <james.mitchell.turner@gmail.com>

crates/fuel-gas-price-algorithm/src/v1.rs

@@ -356,7 +356,7 @@ impl AlgorithmUpdaterV1 {
             .saturating_mul(upcast_percent)
             .saturating_div(100)
             .into();
-        let clamped_change = pd_change.abs().min(max_change);
+        let clamped_change = pd_change.saturating_abs().min(max_change);
         pd_change.signum().saturating_mul(clamped_change)
     }