Rename `e2e:package-and-test` to `e2e:test-on-omnibus`
We should rename job e2e:package-and-test to e2e:test-on-omnibus to align with other e2e test types and to clearly communicate what exactly this downstream pipeline is testing against.
We should rename job e2e:package-and-test to e2e:test-on-omnibus to align with other e2e test types and to clearly communicate what exactly this downstream pipeline is testing against.