fix(qwen-asr): pin numba>=0.60 so the venv resolves on Python 3.12

qwen-asr depends on librosa without a version floor; in a fresh Python 3.12
venv uv backtracks librosa -> numba -> llvmlite to llvmlite 0.36.0, which
predates 3.12 support, failing the install ("Cannot install on Python version
3.12.0"). Pinning numba>=0.60 keeps the chain on llvmlite>=0.43 (numba 0.66 /
llvmlite 0.48 / librosa 0.11 — all 3.12-compatible). Verified by clean-venv
dry-run resolution. Unblocks the Qwen3-ASR backend in analyze_audio runs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: satra

src/senselab/audio/tasks/speech_to_text/qwen.py

@@ -40,6 +40,11 @@
     # exists to prevent).
     "torch>=2.8,<2.9",
     "torchaudio>=2.8,<2.9",
+    # qwen-asr depends on librosa without a floor; on Python 3.12 uv otherwise
+    # backtracks librosa -> numba -> llvmlite to the ancient llvmlite 0.36.0,
+    # which has no 3.12 support ("Cannot install on Python version 3.12.0").
+    # Pin a modern numba floor so the chain resolves to llvmlite>=0.43 (3.12-ok).
+    "numba>=0.60",
 ]
 _QWEN_PYTHON = "3.12"