chore: use more inferInstanceAs

[sgouezel]

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[github-actions]

PR summary 0e301e814c

Import changes for modified files

Dependency changes

File	Base Count	Head Count	Change
Mathlib.Data.Prod.Lex	172	173	+1 (+0.58%)

Import changes for all files

Files	Import difference
4 files Mathlib.Algebra.Order.Monoid.Lex Mathlib.Algebra.Order.Monoid.Prod Mathlib.Data.Prod.Lex Mathlib.Order.Prod.Lex.Hom	1

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Declarations diff

+ instance [AddCommGroup α] : AddCommGroup (Holor α ds)
+ instance [AddCommMonoid α] : AddCommMonoid (Holor α ds)
+ instance [AddCommSemigroup α] : AddCommSemigroup (Holor α ds)
+ instance [AddGroup α] : AddGroup (Holor α ds)
+ instance [AddMonoid α] : AddMonoid (Holor α ds)
+ instance [AddSemigroup α] : AddSemigroup (Holor α ds)
+ instance [Semiring α] : Module α (Holor α ds)
- instCompleteAtomicBooleanAlgebra
- instance [AddCommGroup α] : AddCommGroup (Holor α ds) := Pi.addCommGroup
- instance [AddCommMonoid α] : AddCommMonoid (Holor α ds) := Pi.addCommMonoid
- instance [AddCommSemigroup α] : AddCommSemigroup (Holor α ds) := Pi.addCommSemigroup
- instance [AddGroup α] : AddGroup (Holor α ds) := Pi.addGroup
- instance [AddMonoid α] : AddMonoid (Holor α ds) := Pi.addMonoid
- instance [AddSemigroup α] : AddSemigroup (Holor α ds) := Pi.addSemigroup
- instance [Semiring α] : Module α (Holor α ds) := Pi.module _ _ _

You can run this locally as follows

## summary with just the declaration names:
./scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh contains some details about this script.

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No changes to technical debt.

You can run this locally as

./scripts/reporting/technical-debt-metrics.sh pr_summary

• 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).