Add make command for op-rbuilder image and switch to nightly fmt#542

SozinM wants to merge 4 commits intoflashbots:developflashbots/rbuilder:developfrom

NethermindEth:msozin/op-rbuilder/op-release-makefileNethermindEth/rbuilder:msozin/op-rbuilder/op-release-makefileCopy head branch name to clipboard