Bump golang.org/x/mod from 0.15.0 to 0.16.0

Bumps [golang.org/x/mod](https://github.com/golang/mod) from 0.15.0 to 0.16.0.
- [Commits](golang/mod@v0.15.0...v0.16.0)

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

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

go.mod

@@ -21,7 +21,7 @@ require (
 	github.com/spf13/pflag v1.0.5 // BSD-3-Clause
 	github.com/stretchr/testify v1.9.0 // MIT
 	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225
-	golang.org/x/mod v0.15.0
+	golang.org/x/mod v0.16.0
 	golang.org/x/oauth2 v0.17.0
 	golang.org/x/sync v0.6.0
 	golang.org/x/term v0.17.0