Bump candle rev to 7de0d9fd (picks up moe_gemm_wmma rename to avoid symbol collision)

[lukekim]

Summary

Bumps the workspace candle rev from fab4da81 to 7de0d9fd to pick up spiceai/candle#13, which renames candle-kernels' moe_gemm_wmma → candle_moe_gemm_wmma.

Why

candle-kernels and mistralrs-core each independently ship an extern "C" void moe_gemm_wmma kernel (both adapted from guoqingbao/attention.rs but with diverged signatures and implementations). When both crates are linked into the same binary — e.g. spiced --features cuda,models — the static archives collide:

ld.lld: error: duplicate symbol: moe_gemm_wmma
  >>> defined in libmoe.a (from candle-kernels)
  >>> defined in libmistralrscuda.a (from mistralrs-core)

Renaming the candle side is the minimum-risk fix (3 mechanical edits, no semantic change). mistralrs-core keeps its moe_gemm_wmma / moe_gemm_wmma_transposed call sites untouched.

Scope

• Only Cargo.toml: 5 candle crate revs bumped in lock-step.
• No mistralrs-core source changes needed — our own kernel and its callers are unaffected.

Verification

Verified spiced --features cuda,models links cleanly on CUDA 12.6 / sm_90 (H100) with the matching spiceai/spiceai pin bump.

[github-actions]

Code Metrics Report

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 Dockerfile                1           39           22            8            9
 HTML                      2          235          197           14           24
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 Jupyter Notebooks         3          122           83           23           16
 |- Markdown               1           60           30           22            8
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 (Total)                              304          226           46           32
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 Markdown                105        11197            0         8067         3130
 |- BASH                  72          934          691          149           94
 |- Dockerfile             1            1            1            0            0
 |- JSON                  20          719          719            0            0
 |- PowerShell             3            3            3            0            0
 |- Python                23         1038          862           60          116
 |- Rust                  51         2048         1718           54          276
 |- TOML                   6          207          164            0           43
 |- YAML                   2            9            8            1            0
 (Total)                            16156         4166         8331         3659
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 Rust                    547       236072       207590         6565        21917
 |- Markdown             361         8962          452         7385         1125
 (Total)                           245034       208042        13950        23042
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 Total                   961       311435       249055        28614        33766
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