Move migrate APIs to indices namespace (#3579)

(cherry picked from commit c15f4cf)

# Conflicts:
#	output/schema/schema.json

Author: pquentin

output/openapi/elasticsearch-openapi.json

@@ -1,5 +1,5 @@
 {
-  "migrate.cancel_reindex": {
+  "indices.cancel_migrate_reindex": {
     "documentation": {
       "url": "https://www.elastic.co/guide/en/elasticsearch/reference/master/data-stream-reindex.html",
       "description": "This API returns the status of a migration reindex attempt for a data stream or index"

output/schema/schema-serverless.json

@@ -1,5 +1,5 @@
 {
-  "migrate.create_from": {
+  "indices.create_from": {
     "documentation": {
       "url": "https://www.elastic.co/guide/en/elasticsearch/reference/master/data-stream-reindex.html",
       "description": "This API creates a destination from a source index. It copies the mappings and settings from the source index while allowing request settings and mappings to override the source values."

output/schema/schema.json

@@ -1,5 +1,5 @@
 {
-  "migrate.get_reindex_status": {
+  "indices.get_migrate_reindex_status": {
     "documentation": {
       "url": "https://www.elastic.co/guide/en/elasticsearch/reference/master/data-stream-reindex.html",
       "description": "This API returns the status of a migration reindex attempt for a data stream or index"

output/typescript/types.ts

@@ -1,5 +1,5 @@
 {
-  "migrate.reindex": {
+  "indices.migrate_reindex": {
     "documentation": {
       "url": "https://www.elastic.co/guide/en/elasticsearch/reference/master/data-stream-reindex.html",
       "description": "This API reindexes all legacy backing indices for a data stream. It does this in a persistent task. The persistent task id is returned immediately, and the reindexing work is completed in that task"

specification/_json_spec/migrate.cancel_reindex.json renamed to specification/_json_spec/indices.cancel_migrate_reindex.json

@@ -23,7 +23,7 @@ import { Indices } from '@_types/common'
 /**
  * This API cancels a migration reindex attempt for a data stream or index
  *
- * @rest_spec_name migrate.cancel_reindex
+ * @rest_spec_name indices.cancel_migrate_reindex
  * @availability stack since=8.18.0 stability=experimental
  * @availability serverless stability=experimental visibility=private
  * @doc_id migrate

specification/_json_spec/migrate.create_from.json renamed to specification/_json_spec/indices.create_from.json

@@ -25,7 +25,7 @@ import { TypeMapping } from '@_types/mapping/TypeMapping'
 /**
  * This API creates a destination from a source index. It copies the mappings and settings from the source index while allowing request settings and mappings to override the source values.
  *
- * @rest_spec_name migrate.create_from
+ * @rest_spec_name indices.create_from
  * @availability stack since=8.18.0 stability=experimental
  * @availability serverless stability=experimental visibility=private
  * @doc_id migrate

specification/_json_spec/migrate.get_reindex_status.json renamed to specification/_json_spec/indices.get_migrate_reindex_status.json

@@ -23,7 +23,7 @@ import { Indices } from '@_types/common'
 /**
  * This API returns the status of a migration reindex attempt for a data stream or index
  *
- * @rest_spec_name migrate.get_reindex_status
+ * @rest_spec_name indices.get_migrate_reindex_status
  * @availability stack since=8.18.0 stability=experimental
  * @availability serverless stability=experimental visibility=private
  * @doc_id migrate

specification/_json_spec/migrate.reindex.json renamed to specification/_json_spec/indices.migrate_reindex.json

@@ -23,7 +23,7 @@ import { IndexName } from '@_types/common'
 /**
  * "This API reindexes all legacy backing indices for a data stream. It does this in a persistent task. The persistent task id is returned immediately, and the reindexing work is completed in that task
  *
- * @rest_spec_name migrate.reindex
+ * @rest_spec_name indices.migrate_reindex
  * @availability stack since=8.18.0 stability=experimental
  * @doc_id migrate
  * @doc_tag migration