Update version tags for 1.8.0 (#4821)

* Update version tags for 1.8.0

This is aimed at the 1.8.0 release:
- VERSION file is updated to 1.8.0
- docs/eck-attributes.asciidoc reference 1.8.0

* Also update helm chart version values

Author: sebgl

VERSION

@@ -1 +1 @@
-1.8.0-SNAPSHOT
+1.8.0

deploy/eck-operator/Chart.yaml

@@ -11,9 +11,9 @@ home: https://github.com/elastic/cloud-on-k8s
 
 type: application
 
-version: 1.8.0-SNAPSHOT
+version: 1.8.0
 
-appVersion: 1.8.0-SNAPSHOT
+appVersion: 1.8.0
 
 kubeVersion: ">=1.12.0-0"
 
@@ -32,5 +32,5 @@ maintainers:
 
 dependencies:
   - name: eck-operator-crds
-    version: 1.8.0-SNAPSHOT
+    version: 1.8.0
     condition: installCRDs

deploy/eck-operator/charts/eck-operator-crds/Chart.yaml

@@ -9,9 +9,9 @@ description: |-
 
 type: application
 
-version: 1.8.0-SNAPSHOT
+version: 1.8.0
 
-appVersion: 1.8.0-SNAPSHOT
+appVersion: 1.8.0
 
 home: https://github.com/elastic/cloud-on-k8s
 

docs/eck-attributes.asciidoc

@@ -1,5 +1,5 @@
-:eck_version: 1.7.1
+:eck_version: 1.8.0
 :eck_crd_version: v1
-:eck_release_branch: 1.7
+:eck_release_branch: 1.8
 :eck_github: https://github.com/elastic/cloud-on-k8s
 :eck_resources_list: Elasticsearch, Kibana, APM Server, Enterprise Search, Beats, Elastic Agent, and Elastic Maps Server