feat(autogram): Use new engine

[ValerianRey]

Already making the PR to keep track of progress, and to be able to update the dev-new-engine branch easily when main is updated.

• [x] Remove explicit batched optimizations #470
• [ ] Add and use SLT #484
• [ ] Use no cross-terms (may be directly mergeable in main) #468
• [ ] Implement node-based algorithm and change interface

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
src/torchjd/autogram/_engine.py	100.00% <100.00%> (ø)
src/torchjd/autogram/_gramian_computer.py	100.00% <100.00%> (ø)
src/torchjd/autogram/_jacobian_computer.py	100.00% <100.00%> (ø)
src/torchjd/autogram/_module_hook_manager.py	100.00% <100.00%> (ø)

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