add 3 new staging envs (#57370)

Author: rsese

config/moda/deployment.yaml

@@ -7,8 +7,20 @@ environments:
       profile: general
       region: iad
 
-  # 12 staging environments, evergreens only
+  # 15 staging environments, evergreens only
   # they should all contain the same configs
+  - name: staging-balsam
+    require_pipeline: false
+    notify_still_locked: true # Notify last person to lock this after an hour
+    secret_environment: production
+    required_review_tasks: []
+    auto_deploy: true
+    skip_auto_merge: true
+    cluster_selector:
+      profile: general
+      region: iad
+    extra_completed_message: ':balsam: Review at https://docs-internal-staging-balsam.githubapp.com/'
+
   - name: staging-boxwood
     require_pipeline: false
     notify_still_locked: true # Notify last person to lock this after an hour
@@ -69,6 +81,18 @@ environments:
       region: iad
     extra_completed_message: ':hemlock: Review at https://docs-internal-staging-hemlock.githubapp.com/'
 
+  - name: staging-hinoki
+    require_pipeline: false
+    notify_still_locked: true # Notify last person to lock this after an hour
+    secret_environment: production
+    required_review_tasks: []
+    auto_deploy: true
+    skip_auto_merge: true
+    cluster_selector:
+      profile: general
+      region: iad
+    extra_completed_message: ':hinoki: Review at https://docs-internal-staging-hinoki.githubapp.com/'
+
   - name: staging-holly
     require_pipeline: false
     notify_still_locked: true # Notify last person to lock this after an hour
@@ -153,6 +177,18 @@ environments:
       region: iad
     extra_completed_message: ':spruce: Review at https://docs-internal-staging-spruce.githubapp.com/'
 
+  - name: staging-yew
+    require_pipeline: false
+    notify_still_locked: true # Notify last person to lock this after an hour
+    secret_environment: production
+    required_review_tasks: []
+    auto_deploy: true
+    skip_auto_merge: true
+    cluster_selector:
+      profile: general
+      region: iad
+    extra_completed_message: ':yew: Review at https://docs-internal-staging-yew.githubapp.com/'
+
 required_builds:
   - docs-internal-moda-config-bundle / docs-internal-moda-config-bundle
   - docs-internal-docker-image / docs-internal-docker-image