Fix Liquid syntax error in gitops.md Prometheus alert

Escape template variables in Prometheus alert description to prevent
Jekyll/Liquid parsing errors during site build.

Author: Mirage20

docs/integrating-with-openchoreo/gitops.md

@@ -666,7 +666,7 @@ spec:
         severity: warning
       annotations:
         summary: "GitOps reconciliation failing"
-        description: "{{ $labels.kind }}/{{ $labels.name }} reconciliation has been failing"
+        description: "{% raw %}{{ $labels.kind }}/{{ $labels.name }}{% endraw %} reconciliation has been failing"
 ```
 
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