update-version

Use this when a PR contains docs changes with <AvailableFrom v="..."> and the value should reflect the next release version.

1. Get the canonical version from main:

git fetch origin main --quiet
git --no-pager show origin/main:packages/core/src/version.ts

Read VERSION from that file (for example: 4.0.468), then compute the next patch version by incrementing the patch number by 1 (4.0.469).

2. Find AvailableFrom entries changed in the current PR:

git --no-pager diff origin/main...HEAD -- packages/docs | rg 'AvailableFrom v="'

3. Update only AvailableFrom values touched by this PR so they match the computed next patch version from step 1.