chore: make RingHom.comp implicit_reducible

[sgouezel]

---

[mathlib-bors]

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[github-actions]

PR summary 79540a76d4

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

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---

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• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[github-actions]

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[sgouezel]

!radar

[leanprover-radar]

Benchmark results for 64837c4 against 79540a7 are in. There are significant results. @sgouezel

• ✅ build//instructions: -136.9G (-0.08%)

Large changes (1✅)

• ✅ build/module/Mathlib.Algebra.Category.CommAlgCat.Monoidal//instructions: -83.2G (-33.18%)

Medium changes (2✅)

• ✅ build/module/Mathlib.Algebra.Category.BialgCat.Monoidal//instructions: -11.6G (-17.72%)
• ✅ build/module/Mathlib.AlgebraicGeometry.GammaSpecAdjunction//instructions: -5.7G (-5.84%)

Small changes (11✅, 3🟥)

• 🟥 build/module/Mathlib.Algebra.Ring.TransferInstance//instructions: +243.4M (+2.34%)
• ✅ build/module/Mathlib.AlgebraicGeometry.SpreadingOut//instructions: -609.1M (-2.19%)
• ✅ build/module/Mathlib.AlgebraicGeometry.ValuativeCriterion//instructions: -672.1M (-2.78%)
• 🟥 build/module/Mathlib.Data.Matrix.Auto//instructions: +134.0M (+3.60%)
• ✅ build/module/Mathlib.FieldTheory.CardinalEmb//instructions: -2.3G (-1.87%)
• ✅ build/module/Mathlib.FieldTheory.Extension//instructions: -2.3G (-3.05%)
• ✅ build/module/Mathlib.Geometry.RingedSpace.LocallyRingedSpace.HasColimits//instructions: -916.7M (-3.41%)
• ✅ build/module/Mathlib.RingTheory.Bialgebra.Hom//instructions: -782.2M (-2.79%)
• ✅ build/module/Mathlib.RingTheory.Etale.QuasiFinite//instructions: -9.3G (-3.19%)
• ✅ build/module/Mathlib.RingTheory.GradedAlgebra.AlgHom//instructions: -966.2M (-3.30%)
• ✅ build/module/Mathlib.RingTheory.TensorProduct.Maps//instructions: -9.1G (-4.69%)
• ✅ build/module/Mathlib.RingTheory.WittVector.IsPoly//instructions: -647.3M (-2.35%)
• ✅ build/module/Mathlib.Tactic.Linarith//instructions: -297.4M (-6.51%)
• 🟥 build/module/Mathlib.Tactic.MinImports//instructions: +132.1M (+2.63%)