* Add extra test type modes to support zebra-checkpoints
* Add Mainnet and Testnet zebra-checkpoints test harnesses
* Add zebra-checkpoints to test docker images
* Add zebra-checkpoints test entrypoints
* Add Mainnet CI workflow for zebra-checkpoints
* Enable zebra-checkpoints feature in the test image
* Use the same features for (almost) all the docker tests
* Make workflow features match Docker features
* Add a feature note
* Add a zebra-checkpoints test feature to zebrad
* Remove the "no cached state" testnet code
* Log a startup message to standard error when launching zebra-checkpoints
* Rename tests to avoid partial name conflicts
* Fix log formatting
* Add sentry feature to experimental docker image build
* Explain what ENTRYPOINT_FEATURES is used for
* Use the correct zebra-checkpoints path
* Silence zebrad logs while generating checkpoints
* Fix zebra-checkpoints log handling
* Re-enable waiting for zebrad to fully sync
* Add documentation for how to run these tests individually
* Start generating checkpoints from the last compiled-in checkpoint
* Fix clippy lints
* Revert changes to TestType
* Wait for all the checkpoints before finishing
* Add more stderr debugging to zebra-checkpoints
* Fix an outdated module comment
* Add a workaround for zebra-checkpoints launch/run issues
* Use temp dir and log what it is
* Log extra metadata about the zebra-checkpoints binary
* Add note about unstable feature -Z bindeps
* Temporarily make the test run faster and with debug info
* Log the original test command name when showing stdout and stderr
* Try zebra-checkpoints in the system path first, then the cargo path
* Fix slow thread close bug in dual process test harness
* If the logs are shown, don't say they are hidden
* Run `zebra-checkpoints --help` to work out what's going on in CI
* Build `zebra-utils` binaries for `zebrad` integration tests
* Revert temporary debugging changes
* Revert changes that were moved to another PR