try
compile fg.deobf('org.squiddev:cc-tweaked-1.15.2:1.88.1')
idk if that will work but i have mine set up as
// at runtime, use the full JEI jar
runtimeOnly fg.deobf("mezz.jei:jei-${mc_version}:${jei_version}")
// Adds ProjectE as Dependency
compile fg.deobf(curse.resolveID('projecte', project.projecte_file))