Update module golang.org/x/mod to v0.16.0 (#31588)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| golang.org/x/mod | `v0.15.0` -> `v0.16.0` |
[![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fmod/v0.16.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
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|
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Author: renovate[bot]

cmd/configschema/go.mod

@@ -15,7 +15,7 @@ require (
 	go.opentelemetry.io/collector/otelcol v0.96.1-0.20240305232712-5a68058e0e3a
 	go.opentelemetry.io/collector/receiver/otlpreceiver v0.96.1-0.20240305232712-5a68058e0e3a
 	go.uber.org/goleak v1.3.0
-	golang.org/x/mod v0.15.0
+	golang.org/x/mod v0.16.0
 	golang.org/x/text v0.14.0
 	gopkg.in/yaml.v2 v2.4.0
 )