Added: release notes for #11562

Author: GPortas

doc/release-notes/11562-templates-api.md

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+New endpoints have been implemented in the Dataverses API for the management of dataverse templates:
+
+- POST `/dataverses/{id}/templates`: Creates a template for a given Dataverse collection ``id``.
+- GET `/dataverses/{id}/templates`: Lists the templates for a given Dataverse collection ``id``.