build(deps): bump golang.org/x/tools from 0.39.0 to 0.40.0

Bumps [golang.org/x/tools](https://github.com/golang/tools) from 0.39.0 to 0.40.0.
- [Release notes](https://github.com/golang/tools/releases)
- [Commits](golang/tools@v0.39.0...v0.40.0)

---
updated-dependencies:
- dependency-name: golang.org/x/tools
  dependency-version: 0.40.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -137,10 +137,10 @@ require (
 	go.augendre.info/fatcontext v0.9.0
 	go.uber.org/automaxprocs v1.6.0
 	go.yaml.in/yaml/v3 v3.0.4
-	golang.org/x/mod v0.30.0
-	golang.org/x/sync v0.18.0
+	golang.org/x/mod v0.31.0
+	golang.org/x/sync v0.19.0
 	golang.org/x/sys v0.39.0
-	golang.org/x/tools v0.39.0
+	golang.org/x/tools v0.40.0
 	honnef.co/go/tools v0.6.1
 	mvdan.cc/gofumpt v0.9.2
 	mvdan.cc/unparam v0.0.0-20251027182757-5beb8c8f8f15