Export constructTsit5ExplicitRK from OrdinaryDiffEq

Add export of constructTsit5ExplicitRK function from both
OrdinaryDiffEqExplicitRK and the main OrdinaryDiffEq module.
This fixes the LTS CI test failure where the function was
not accessible from OrdinaryDiffEq.

Co-Authored-By: Chris Rackauckas <[email protected]>
Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: claude

lib/OrdinaryDiffEqExplicitRK/src/OrdinaryDiffEqExplicitRK.jl

@@ -25,6 +25,6 @@ include("explicit_rk_perform_step.jl")
 include("inter_func.jl")
 include("interpolants.jl")
 
-export ExplicitRK
+export ExplicitRK, constructTsit5ExplicitRK
 
 end

src/OrdinaryDiffEq.jl

@@ -226,8 +226,8 @@ using OrdinaryDiffEqNordsieck: AN5, JVODE, JVODE_Adams, JVODE_BDF
 export OrdinaryDiffEqNordsieck, AN5, JVODE, JVODE_Adams, JVODE_BDF
 
 import OrdinaryDiffEqExplicitRK: OrdinaryDiffEqExplicitRK
-using OrdinaryDiffEqExplicitRK: ExplicitRK, constructDormandPrince
-export OrdinaryDiffEqExplicitRK, ExplicitRK
+using OrdinaryDiffEqExplicitRK: ExplicitRK, constructDormandPrince, constructTsit5ExplicitRK
+export OrdinaryDiffEqExplicitRK, ExplicitRK, constructTsit5ExplicitRK
 
 import OrdinaryDiffEqLinear: OrdinaryDiffEqLinear
 using OrdinaryDiffEqLinear: MagnusMidpoint, LinearExponential, MagnusLeapfrog, LieEuler,