chore (RingTheory.Kaehler): reasonable heartbeat limits (#6178)

In light of #6141, we can change the heart beats to more representantive numbers.



Co-authored-by: Matthew Robert Ballard <100034030+mattrobball@users.noreply.github.com>

Author: mattrobball

Mathlib/RingTheory/Kaehler.lean

@@ -391,7 +391,7 @@ theorem KaehlerDifferential.End_equiv_aux (f : S →ₐ[R] S ⊗ S ⧸ KaehlerDi
 set_option maxHeartbeats 700000 in
 -- Porting note: extra heartbeats are needed to infer the instance
 -- Module S { x // x ∈ Ideal.cotangentIdeal (ideal R S) }
-set_option synthInstance.maxHeartbeats 2000000 in
+set_option synthInstance.maxHeartbeats 200000 in
 -- This has type
 -- `Derivation R S (Ω[S⁄R]) ≃ₗ[R] Derivation R S (KaehlerDifferential.ideal R S).cotangentIdeal`
 -- But lean times-out if this is given explicitly.
@@ -412,8 +412,9 @@ def KaehlerDifferential.endEquivAuxEquiv :
   (Equiv.refl _).subtypeEquiv (KaehlerDifferential.End_equiv_aux R S)
 #align kaehler_differential.End_equiv_aux_equiv KaehlerDifferential.endEquivAuxEquiv
 
-set_option maxHeartbeats 4100000 in
-set_option synthInstance.maxHeartbeats 4000000 in
+
+set_option maxHeartbeats 1200000 in
+set_option synthInstance.maxHeartbeats 1000000 in
 /--
 The endomorphisms of `Ω[S⁄R]` corresponds to sections of the surjection `S ⊗[R] S ⧸ J ^ 2 →ₐ[R] S`,
 with `J` being the kernel of the multiplication map `S ⊗[R] S →ₐ[R] S`.