Add new fragment inputs to `maxInterStageShaderVariables:createRenderPipeline,at_over` test#4541

ErichDonGubler wants to merge 1 commit intogpuweb:maingpuweb/cts:mainfrom

erichdongubler-mozilla:maxInterStageShaderVariables-new-fragment-inputserichdongubler-mozilla/gpuweb-cts:maxInterStageShaderVariables-new-fragment-inputsCopy head branch name to clipboard