fix(docs): update Google Cloud product name in OpenTelemetry guide

Replaced the outdated name "Google Cloud Operations Suite" with the current name "Google Cloud Observability" in the OpenTelemetry documentation. This ensures that users have the most accurate and up-to-date information regarding Google Cloud's monitoring and diagnostics services.

Author: robinbraemer

.web/docs/guide/otel/index.md

@@ -74,7 +74,7 @@ You can use various solutions to collect and visualize OpenTelemetry data. Here
 - [Datadog](https://www.datadog.com/) - Cloud monitoring and analytics platform
 - [Azure Monitor](https://azure.microsoft.com/services/monitor/) - Microsoft's cloud-native monitoring solution
 - [AWS X-Ray](https://aws.amazon.com/xray/) - Distributed tracing system for AWS applications
-- [Google Cloud Operations Suite](https://cloud.google.com/operations) - Formerly Stackdriver, for monitoring, logging, and diagnostics
+- [Google Cloud Observability](https://cloud.google.com/products/observability) - Formerly Stackdriver, for monitoring, logging, and diagnostics
 
 ### Self-Hosted Solutions