Enable precompilation for SDEProblemLibrary

Remove `__precompile__(false)` from SDEProblemLibrary which was added in commit 3444ffe
to work around ModelingToolkit compatibility issues. Since:

1. The Catalyst/MTK dependency was removed from SDEProblemLibrary in commit 80bd7e4
2. ODEProblemLibrary and JumpProblemLibrary already had precompilation re-enabled in
   commit 1e68aa7, but SDEProblemLibrary was missed

SDEProblemLibrary can now properly precompile, improving package load times when the
cache is used. Tests continue to pass with this change.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: claude

lib/SDEProblemLibrary/Project.toml

@@ -1,6 +1,6 @@
 name = "SDEProblemLibrary"
 uuid = "c72e72a9-a271-4b2b-8966-303ed956772e"
-version = "1.1.0"
+version = "1.1.1"
 
 [deps]
 DiffEqBase = "2b5f629d-d688-5b77-993f-72d75c75574e"

lib/SDEProblemLibrary/src/SDEProblemLibrary.jl

@@ -1,5 +1,3 @@
-__precompile__(false)
-
 module SDEProblemLibrary
 
 using DiffEqBase, Markdown