Publish CI image as 1.0.x tag

ci/parameters.yml

@@ -3,6 +3,7 @@ github-repo-name: "spring-projects/spring-graphql"
 docker-hub-organization: "springci"
 artifactory-server: "https://repo.spring.io"
 branch: "main"
+milestone: "1.0.x"
 build-name: "spring-graphql"
 pipeline-name: "spring-graphql"
 concourse-url: "https://ci.spring.io"

ci/pipeline.yml

@@ -2,7 +2,7 @@ anchors:
   docker-resource-source: &docker-resource-source
     username: ((docker-hub-username))
     password: ((docker-hub-password))
-    tag: master
+    tag: ((milestone))
   gradle-enterprise-task-params: &gradle-enterprise-task-params
     GRADLE_ENTERPRISE_ACCESS_KEY: ((gradle_enterprise_secret_access_key))
     GRADLE_ENTERPRISE_CACHE_USERNAME: ((gradle_enterprise_cache_user.username))