* feat: make head pull failure warning toggleable
* expect prometheus tests to go through EVENTUALLY
* wait for queue to be empty before checking test conditions
* clean up new head failure toggle
* fixup! clean up new head failure toggle
* test: add registry tests
* test: add warn on head failure tests
* fix client interface and make tests hit more lines
* make all tests use NewClient instead of creating a struct pointer
* fix lint issues
Co-authored-by: Simon Aronsson <simme@arcticbit.se>
