CI: add missing resource for bump-deps

Author: aramprice

ci/pipelines/builder.yml

@@ -740,6 +740,9 @@ jobs:
         - get: weekly
           trigger: true
         - get: bosh-integration-image
+        - get: os-image-tarball
+          passed:
+            - build-os-image
     - load_var: ruby_version
       file: bosh-linux-stemcell-builder/.ruby-version
       reveal: true