chore(tests/lean/run/heap): fix travis build, profiler option is not available in single threaded build
chore(tests/lean/run/heap): fix travis build, profiler option is not available in single threaded build

rlewis1988/lean,leanprover-community/lean,leanprover/lean,fpvandoorn/lean,leanprover/lean,leanprover/lean,digama0/lean,fpvandoorn/lean,rlewis1988/lean,dselsam/lean,leanprover/lean,digama0/lean,dselsam/lean,leanprover-community/lean,rlewis1988/lean,johoelzl/lean,dselsam/lean,leodemoura/lean,fgdorais/lean,leanprover-community/lean,fgdorais/lean,leanprover/lean,avigad/lean,fpvandoorn/lean,dselsam/lean,Kha/lean,digama0/lean,avigad/lean,leanprover-community/lean,dselsam/lean,avigad/lean,johoelzl/lean,digama0/lean,fgdorais/lean,fgdorais/lean,leodemoura/lean,rlewis1988/lean,leodemoura/lean,johoelzl/lean,Kha/lean,leodemoura/lean,fpvandoorn/lean,leodemoura/lean,Kha/lean,fpvandoorn/lean,avigad/lean,rlewis1988/lean,rlewis1988/lean,johoelzl/lean,leanprover/lean,dselsam/lean,leanprover-community/lean,fpvandoorn/lean,Kha/lean,johoelzl/lean,Kha/lean,johoelzl/lean,Kha/lean,digama0/lean,avigad/lean,fgdorais/lean,leanprover-community/lean,fgdorais/lean,leodemoura/lean,avigad/lean,digama0/lean