Finalize 8.9 release version (#2241)

* Finalize 8.9 release

* Update fields.csv

* results of make

---------

Co-authored-by: Kylie Geller <[email protected]>

Author: bhapas

docs/fields/fields.asciidoc

@@ -1,5 +1,5 @@
 # WARNING! Do not edit this file directly, it was generated by the ECS project,
-# based on ECS version 8.9.0-dev+exp.
+# based on ECS version 8.9.0+exp.
 # Please visit https://github.com/elastic/ecs to suggest changes to ECS fields.
 
 - key: ecs

docs/index.asciidoc

@@ -1,7 +1,7 @@
 {
   "_meta": {
     "documentation": "https://www.elastic.co/guide/en/ecs/current/ecs-agent.html",
-    "ecs_version": "8.9.0-dev+exp"
+    "ecs_version": "8.9.0+exp"
   },
   "template": {
     "mappings": {

experimental/generated/beats/fields.ecs.yml

@@ -1,7 +1,7 @@
 {
   "_meta": {
     "documentation": "https://www.elastic.co/guide/en/ecs/current/ecs-base.html",
-    "ecs_version": "8.9.0-dev+exp"
+    "ecs_version": "8.9.0+exp"
   },
   "template": {
     "mappings": {

experimental/generated/csv/fields.csv

@@ -1,7 +1,7 @@
 {
   "_meta": {
     "documentation": "https://www.elastic.co/guide/en/ecs/current/ecs-cgroup.html",
-    "ecs_version": "8.9.0-dev+exp"
+    "ecs_version": "8.9.0+exp"
   },
   "template": {
     "mappings": {

experimental/generated/elasticsearch/composable/component/agent.json

@@ -1,7 +1,7 @@
 {
   "_meta": {
     "documentation": "https://www.elastic.co/guide/en/ecs/current/ecs-client.html",
-    "ecs_version": "8.9.0-dev+exp"
+    "ecs_version": "8.9.0+exp"
   },
   "template": {
     "mappings": {

experimental/generated/elasticsearch/composable/component/base.json

@@ -1,7 +1,7 @@
 {
   "_meta": {
     "documentation": "https://www.elastic.co/guide/en/ecs/current/ecs-cloud.html",
-    "ecs_version": "8.9.0-dev+exp"
+    "ecs_version": "8.9.0+exp"
   },
   "template": {
     "mappings": {

experimental/generated/elasticsearch/composable/component/cgroup.json

@@ -1,7 +1,7 @@
 {
   "_meta": {
     "documentation": "https://www.elastic.co/guide/en/ecs/current/ecs-container.html",
-    "ecs_version": "8.9.0-dev+exp"
+    "ecs_version": "8.9.0+exp"
   },
   "template": {
     "mappings": {