chore(codeowners): gas price service codeowners (#2534)

## Linked Issues/PRs
<!-- List of related issues/PRs -->

## Description
<!-- List of detailed changes -->
Adds myself to the codeowners for gas price service.

## Checklist
- [ ] Breaking changes are clearly marked as such in the PR description
and changelog
- [ ] New behavior is reflected in tests
- [ ] [The specification](https://github.com/FuelLabs/fuel-specs/)
matches the implemented behavior (link update PR if changes are needed)

### Before requesting review
- [ ] I have reviewed the code myself
- [ ] I have created follow-up issues caused by this PR and linked them
here

### After merging, notify other teams

[Add or remove entries as needed]

- [ ] [Rust SDK](https://github.com/FuelLabs/fuels-rs/)
- [ ] [Sway compiler](https://github.com/FuelLabs/sway/)
- [ ] [Platform
documentation](https://github.com/FuelLabs/devrel-requests/issues/new?assignees=&labels=new+request&projects=&template=NEW-REQUEST.yml&title=%5BRequest%5D%3A+)
(for out-of-organization contributors, the person merging the PR will do
this)
- [ ] Someone else?

Co-authored-by: Green Baneling <[email protected]>

.github/CODEOWNERS

@@ -5,4 +5,7 @@
 crates/fuel-gas-price-algorithm @xgreenx @Dentosal @MitchTurner @rafal-ch
 
 # Code owners for the transaction pool
-crates/services/txpool_v2 @xgreenx @Dentosal @MitchTurner @AurelienFT
+crates/services/txpool_v2 @xgreenx @Dentosal @MitchTurner @AurelienFT
+
+# Code owners for the gas price service (v0 & v1)
+crates/services/gas_price_service @xgreenx @Dentosal @MitchTurner @rymnc