chore: use docker not container (#64)

was referencing the main branch of upstream container, not the one I am
actually using. s/container/docker/

Reviewed-on: #64

apps/base/puppet/deployment_puppetserver-compiler.yaml

@@ -99,7 +99,7 @@ spec:
         - mountPath: /opt/vault-ca-cert.crt
           name: vault-ca-cert
           subPath: ca.crt
-        - mountPath: /container-custom-entrypoint.d/additional-ruby-gems.sh
+        - mountPath: /docker-custom-entrypoint.d/post-startup/additional-ruby-gems.sh
           name: additional-ruby-gems
           subPath: additional-ruby-gems.sh
       initContainers: