build(deps): bump github.com/open-policy-agent/opa from 1.8.0 to 1.9.0

Bumps [github.com/open-policy-agent/opa](https://github.com/open-policy-agent/opa) from 1.8.0 to 1.9.0.
- [Release notes](https://github.com/open-policy-agent/opa/releases)
- [Changelog](https://github.com/open-policy-agent/opa/blob/main/CHANGELOG.md)
- [Commits](https://github.com/open-policy-agent/opa/compare/v1.8.0...v1.9.0)

---
updated-dependencies:
- dependency-name: github.com/open-policy-agent/opa
  dependency-version: 1.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

vendor/github.com/rcrowley/go-metrics/.travis.yml

@@ -13,6 +13,7 @@ go:
     - "1.12"
     - "1.13"
     - "1.14"
+    - "1.15"
 
 script:
     - ./validate.sh

vendor/github.com/rcrowley/go-metrics/README.md

@@ -7,6 +7,15 @@ Go port of Coda Hale's Metrics library: <https://github.com/dropwizard/metrics>.
 
 Documentation: <http://godoc.org/github.com/rcrowley/go-metrics>.
 
+Archived as of April 1 2025
+-----
+This repository is no longer maintained. The authors recommend you explore the
+following newer, more widely adopted libraries for your Go instrumentation
+needs:
+
+* [OpenTelemetry Go SDK](https://opentelemetry.io/docs/languages/go/instrumentation/#metrics)
+* [Prometheus Go Client Library](https://pkg.go.dev/github.com/prometheus/client_golang/prometheus)
+
 Usage
 -----