Switch to OCI by default in BB values

As the final issue of this epic we should modify our default values to remove git references and replace them with the OCI references (this should be done in the chart/values.yaml).

A boilerplate values for all packages is included in the 2.0 values file but this WILL need updates for tags, potentially names, etc.

As part of this change you should validate that an all-packages pipeline is able to successfully pass. You may also want to test locally to validate that both oci and git are still functional options for any/all packages.