op-acceptance-tests: matrix the Jovian tests across Pectra and Fusaka L1s

[joshklop]

Right now they only execute against a Pectra L1. We can have generic test implementations that we import in subpackages. Each subpackage would have a different devnet configuration. I think a test would look like:

func TestExampleWithPectraL1(t *testing.T) {
    fusaka.RunTestExample(t)
}