Update pipeline

.drone.yml

@@ -1,30 +1,27 @@
----
 # ----------------------------------------------
 # -- Build an image and push it to the registry
 # ----------------------------------------------
 kind: pipeline
 type: docker
 name: Build the builder
-
 trigger:
   event:
     - push
-
-
+environment:
+  BUILDER_VERSION: 555262114ea81f6f286010474527f419b56d33a3
 steps:
   - name: Build and push the docker image
-    image: git.badhouseplants.net/badhouseplants/badhouseplants-builder:f1775ea02b0c985e27449fbabeb810cd07e27f53
+    image: git.badhouseplants.net/badhouseplants/badhouseplants-builder:${BUILDER_VERSION}
     privileged: true
     environment:
       GITEA_TOKEN:
         from_secret: GITEA_TOKEN
     commands:
       - build-container
-  
   - name: Cleanup registry
-    image: git.badhouseplants.net/badhouseplants/badhouseplants-builder:f1775ea02b0c985e27449fbabeb810cd07e27f53
+    image: git.badhouseplants.net/badhouseplants/badhouseplants-builder:${BUILDER_VERSION}
     environment:
       GITEA_TOKEN:
         from_secret: GITEA_TOKEN
-    commands: 
+    commands:
       - cleanup