Update to fmt 10.1.1 and spdlog 1.12.0.

[bdice]

This PR updates to fmt 10.1.1 and spdlog 1.12.

Depends on rapidsai/rmm#1374.

[bdice]

One test appears to be flaky (link to log).

[ RUN      ] AnnCagraTest/AnnCagraTestF_I64.AnnCagra/201
[I] [20:21:24.406368] Recall = 0.991000 (991/1000), the error is 80.0% above the threshold (eps = 0.003000).
/opt/conda/conda-bld/work/cpp/test/neighbors/ann_cagra/../ann_cagra.cuh:271: Failure
Value of: eval_neighbours(indices_naive, indices_Cagra, distances_naive, distances_Cagra, ps.n_queries, ps.k, 0.003, min_recall)
  Actual: false (actual recall (0.99099999999999999) is lower than the minimum expected recall (0.995); eps = 0.0030000000000000001. )
Expected: true

[  FAILED  ] AnnCagraTest/AnnCagraTestF_I64.AnnCagra/201, where GetParam() = {n_queries=100, dataset shape=20000x32, k=10, auto, max_queries=10, itopk_size=64, search_width=1, metric=0, host, build_algo=NN_DESCENT}

[bdice]

Revert changes that use CI artifacts and the upstream rapids-cmake branch before merging.

[bdice]

/merge