chore(deps): bump github.com/redis/go-redis/v9 from 9.18.0 to 9.19.0

Bumps [github.com/redis/go-redis/v9](https://github.com/redis/go-redis) from 9.18.0 to 9.19.0.
- [Release notes](https://github.com/redis/go-redis/releases)
- [Changelog](https://github.com/redis/go-redis/blob/master/RELEASE-NOTES.md)
- [Commits](https://github.com/redis/go-redis/compare/v9.18.0...v9.19.0)

---
updated-dependencies:
- dependency-name: github.com/redis/go-redis/v9
  dependency-version: 9.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -17,7 +17,7 @@ require (
 	github.com/modelcontextprotocol/go-sdk v1.4.0
 	github.com/pelletier/go-toml/v2 v2.3.0
 	github.com/prometheus/client_golang v1.23.2
-	github.com/redis/go-redis/v9 v9.18.0
+	github.com/redis/go-redis/v9 v9.19.0
 	github.com/spaolacci/murmur3 v1.1.0
 	github.com/stretchr/testify v1.11.1
 	github.com/titanous/json5 v1.0.0
@@ -58,7 +58,6 @@ require (
 	github.com/coreos/go-semver v0.3.1 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/emicklei/go-restful/v3 v3.12.2 // indirect
 	github.com/envoyproxy/go-control-plane/envoy v1.36.0 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.3.0 // indirect