fix: use correct Antora family prefix for Tech-Preview snippet include

Replace examples/ path with example$ family prefix required by Antora
for including files from the examples/ directory.

Assisted-by: Claude Sonnet 4.6
Signed-off-by: Oleksii Orel <oorel@redhat.com>

Author: olexii4

modules/administration-guide/pages/configuring-ai-providers.adoc

@@ -8,7 +8,7 @@
 = Configure AI providers
 
 :FeatureName: The AI provider feature
-include::examples/snip_che-technology-preview.adoc[]
+include::example$snip_che-technology-preview.adoc[]
 
 [role="_abstract"]
 Register one or more AI providers in {prod-short} so that developers can select and use AI coding assistants when creating workspaces.