burn-jit at HEAD won't compile with the stable toolchain

[crutcher]

Describe the bug
./run-tests.sh std will fail on stable (1.82.0), because some clipping warnings are in use which are new to 1.83.0.

To Reproduce

1. Check out main at HEAD
2. rustup override set stable # 1.82.0
3. ./run-tests.sh std

See:

   Compiling burn-import v0.16.0 (/home/crutcher/git/burn/burn/crates/burn-import)
error: unknown lint: `clippy::manual_div_ceil`
  --> crates/burn-jit/src/kernel/conv/conv2d/gemm/homogeneous/base.rs:79:17
   |
79 |         #[allow(clippy::manual_div_ceil)]
   |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::manual_filter`
   |
   = note: `-D unknown-lints` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(unknown_lints)]`

error: unknown lint: `clippy::manual_div_ceil`
  --> crates/burn-jit/src/kernel/pool/adaptive_avg_pool2d.rs:65:9
   |
65 | #[allow(clippy::manual_div_ceil)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::manual_filter`

error: unknown lint: `clippy::manual_div_ceil`
  --> crates/burn-jit/src/kernel/pool/adaptive_avg_pool2d_backward.rs:69:9
   |
69 | #[allow(clippy::manual_div_ceil)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::manual_filter`

[AsherJingkongChen]

To resolve, try rustup update stable.