Update "Cloud Native Landscape's observability section" link (#3024)

The current link to the CNCF Landscape observability section is not working anymore. This PR updates the link to a valid one.

Signed-off-by: Rodolfo Martínez Vega <[email protected]>

Author: ramrodo

content/en/observability.md

@@ -9,7 +9,7 @@ Observability is a system property that defines the degree to which the system c
 It allows users to understand a system's state from these external outputs and take (corrective) action.
 
 Computer systems are measured by observing low-level signals such as CPU time, memory, disk space, and higher-level and business signals, including API response times, errors, transactions per second, etc.
-These observable systems are **observed** (or monitored) through specialized tools, so-called observability tools. A list of these tools can be viewed in the [Cloud Native Landscape's observability section](https://landscape.cncf.io/card-mode?category=observability-and-analysis&grouping=category).
+These observable systems are **observed** (or monitored) through specialized tools, so-called observability tools. A list of these tools can be viewed in the [Cloud Native Landscape's observability section](https://landscape.cncf.io/?group=projects-and-products&view-mode=card#observability-and-analysis--observability).
 
 Observable systems yield meaningful, actionable data to their operators, allowing them to achieve favorable outcomes (faster incident response, increased developer productivity) and less toil and downtime.