Remove downstream test against ContinuumArrays (#292)

Author: jishnub

.github/workflows/downstream.yml

@@ -40,7 +40,6 @@ jobs:
           - {repo: ArrayLayouts.jl, group: JuliaLinearAlgebra}
           - {repo: LazyBandedMatrices.jl, group: JuliaLinearAlgebra}
           - {repo: BandedMatrices.jl, group: JuliaLinearAlgebra}
-          - {repo: ContinuumArrays.jl, group: JuliaApproximation}
           - {repo: BlockBandedMatrices.jl, group: JuliaLinearAlgebra}
           - {repo: InfiniteLinearAlgebra.jl, group: JuliaLinearAlgebra}
           - {repo: Optim.jl, group: JuliaNLSolvers}