API: Enable finch backend for scipy.sparse

[mtsokol]

Hi @hameerabbasi,

Once finch-tensor/finch-tensor-python#31 is merged this PR will make sure that scipy.sparse also accepts finch-backend tensors!

[github-actions]

Test Results

5 923 tests  +10   5 891 ✅ +12   7m 1s ⏱️ - 1m 56s
    1 suites ± 0      32 💤  -  2 
    1 files   ± 0       0 ❌ ± 0 

Results for commit 017cb7d. ± Comparison against base commit 5bd2df6.

This pull request removes 6 and adds 16 tests. Note that renamed tests count towards both.

sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-coo]
sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-csc]
sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-csr]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-coo]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-csc]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-csr]

sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-coo-C]
sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-coo-F]
sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-csc-F]
sparse.tests.test_backends ‑ test_asarray[BackendType.Finch-csr-C]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-coo-C]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-coo-F]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-csc-F]
sparse.tests.test_backends ‑ test_asarray[BackendType.PyData-csr-C]
sparse.tests.test_backends ‑ test_scipy_sparse_dispatch[BackendType.Finch-coo-C]
sparse.tests.test_backends ‑ test_scipy_sparse_dispatch[BackendType.Finch-coo-F]
…

♻️ This comment has been updated with latest results.

[mtsokol]

@hameerabbasi Thank you for reviewing! Could you also cut a new alpha release?

[hameerabbasi]

Done! https://pypi.org/project/sparse/0.16.0a4/