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Looks like a ring of 6 spring prongs that all have to be compressed at the same time. Try a mini tie wrap to hold all the prongs in. You may have to hold it over the prongs as you push up. Maybe electrical tape around them just at the end so the top retaining section can passes through the hole.
they are difficult ! but can be done . there is a groove on the sprayer those "tangs" fit into , you need to move all of them out at the same time to pop it out .