av: Add versions 19.0.0, 19.0.1

[riseproject-dev]

Automatically generated by the nightly check_versions.py run.

av v18.1.0 -> v19.0.0, v19.0.1

Every - version: entry added to docs/packages/av.yaml is built by this PR's own build-av.yml run; merging publishes the wheels.

[github-actions]

PR Preview Action v1.8.1
🚀 View preview at https://riseproject-dev.github.io/python-wheels/pr-preview/pr-2500/
Built to branch gh-pages at 2026-10-10 20:13 UTC. Preview will be ready when the GitHub Pages deployment is complete.

[luhenry]

Build av 19.0.0 manylinux_riscv64 is failing in the musllinux_1_2_riscv64/cp312 test leg: tests/test_colorspace.py segfaults partway through (Segmentation fault (core dumped), exit 139), right after test_codec_context.py finishes.

This is the same class of crash already seen on 18.1.0's musllinux+cp314t leg (also in test_colorspace.py, also right after the codec-context tests) — except here it's hitting a plain GIL-enabled cp312 build, not just the free-threaded one, so it's broader than previously thought.

A prior investigation of the 18.1.0/cp314t case came back with three competing hypotheses (musl's smaller default thread stack size, a PyAV/FFmpeg colorspace-filter bug, and a riscv64-specific codegen issue) and no conclusive root cause from the logs alone — reproducing it needs an actual riscv64 box with a debugger, which isn't available here. I'm not pushing a speculative fix without being able to verify it. Leaving this open; musllinux may ultimately need to be dropped for av (same precedent as build-selectolax.yml/build-longbridge.yml) if a real fix doesn't turn up.

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