chore(deps): bump k8s.io/code-generator from 0.29.4 to 0.31.0

Bumps [k8s.io/code-generator](https://github.com/kubernetes/code-generator) from 0.29.4 to 0.31.0.
- [Commits](kubernetes/code-generator@v0.29.4...v0.31.0)

---
updated-dependencies:
- dependency-name: k8s.io/code-generator
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -2,7 +2,7 @@ module github.com/kong/go-database-reconciler
 
 go 1.22.0
 
-toolchain go1.22.4
+toolchain go1.22.5
 
 replace github.com/yudai/gojsondiff v1.0.0 => github.com/Kong/gojsondiff v1.3.0