$PINNIPED_TEST_SUPERVISOR_UPSTREAM_OIDC_ISSUER_CA_BUNDLE was recently
changed to be a base64 encoded value, so this script does not need to
base64 encode the value itself anymore.
A demo of running the Supervisor and Concierge on
a kind cluster. Can be used to quickly set up an
environment for manual testing.
Also added some missing copyright headers to other
hack scripts.