Add explicit numba/llvmlite pins for Python 3.11+ compatibility

Fixes dependency resolution issues where transitive dependencies
through resampy would install incompatible versions:
- numba>=0.61.0 (supports Python 3.10-3.13)
- llvmlite>=0.44.0 (supports Python 3.10-3.13)

Previously, older versions (numba 0.53.1, llvmlite 0.36.0) only
supported Python 3.6-3.9, causing deployment failures on Python 3.11+.

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

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

pyproject.toml

@@ -34,6 +34,9 @@ dependencies = [
     "resampy~=0.4.3",
     "soxr~=0.5.0",
     "openai~=1.74.0",
+    # Explicit dependency pins for Python 3.11+ compatibility
+    "numba>=0.61.0",
+    "llvmlite>=0.44.0",
 ]
 
 [project.urls]