Update function-runner to 9.2.3 - #9060

WHY are these changes introduced?

The fuel calculation we use for Shopify Functions in prod changed very slightly and this version of function-runner should match what's in use with prod.

WHAT is this pull request doing?

Just updates the version of the function-runner release.

How to manually test your changes?

rm -rf packages/app/{src,dist}/cli/services/bin
pnpm shopify app function build --path /absolute/path/to/function-extension
pnpm shopify app function run --path /absolute/path/to/function-extension --input /absolute/path/to/input.json --verbose

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• The change is user-facing — I've identified the correct bump type (patch for bug fixes · minor for new features · major for breaking changes) and added a changeset with pnpm changeset add