Merge branch 'mergeElserService' of github.com:elastic/elasticsearch into mergeElserService

Author: Max Hniebergall

docs/changelog/113216.yaml

@@ -0,0 +1,10 @@
+pr: 113216
+summary: "[Inference API] Deprecate elser service"
+area: Machine Learning
+type: deprecation
+issues: []
+deprecation:
+  title: "[Inference API] Deprecate elser service"
+  area: Machine Learning
+  details: The `elser` service of the inference API will be removed in an upcoming release. Please use the elasticsearch service instead. 
+  impact: In the current version there is no impact. In a future version, users of the `elser` service will no longer be able to use it, and will be required to use the `elasticsearch` service to access elser through the inference API.