audio: audiocraft needs xformers at import

Dropped with the rest of its unsatisfiable pins, but audiocraft imports xformers
at module load, so the venv built cleanly and then failed its import check with
ModuleNotFoundError — which is what that check exists for: on a rented GPU this
would have surfaced minutes into a generation instead.

Its pin (<0.0.23) pairs with the torch it cannot have here; 0.0.25.post1 is the
build that matches torch 2.2.2.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0182DhR1eFNPQyGmDrpHbedY

packaging/runpod/profiles/audio.venv-audiocraft.txt

@@ -22,6 +22,12 @@ torchvision==0.17.2
 # mypy, coverage, pdoc3) and gradio are deliberately absent: a pod serves an
 # API, it does not run the library's test suite or its demo UI. torchtext is
 # absent too — it is abandoned, unbuildable here, and unused at inference.
+#
+# xformers IS needed: audiocraft imports it at module load, so leaving it out
+# turned the build's import check into a ModuleNotFoundError — which is exactly
+# what that check is for. Its pin (<0.0.23) pairs with the torch it cannot have
+# here; 0.0.25.post1 is the build that matches torch 2.2.2.
+xformers==0.0.25.post1
 av>=11.0.0
 einops
 flashy>=0.0.1