If it is a broken valve spring or collet, the valve would be totally free to move up with the piston, and thus it would be unlikely to bend.Tom is right, but that’s a big “if“ that the valve or stem is not damaged - it looks to be hanging down pretty far, and if the “half-moon kiss” on the piston is real, damage is pretty much a given.
You’ll have to pull the camshaft as a first step anyway. If all the valves close and seal (you’ll be using something like this to put air in the cylinder), just make a sacrifice to the deity or stars of your choice and vow to never sin again. You have been blessed.
If the valve is damaged, indicated by the air whooshing past it, you’re part way to pulling the head and replacing the valve.
Before doing any of that, though, get some borescope shots of the cylinder walls with the piston down. No point in doing any work if the walls are damaged.