chore(ci): remove changeset version preview job (#1049)

The shared changeset-preview action reads every pending changeset in
.changeset/ rather than just the PR's delta, so with ~50 unreleased
changesets accumulated the comment misattributes the whole backlog
(including bogus 1.0.0 major bumps) to every PR.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: tombeckenham

.github/workflows/pr.yml

@@ -48,18 +48,3 @@ jobs:
         run: pnpm run build:all
       - name: Publish Previews
         run: pnpx pkg-pr-new publish --pnpm './packages/*'
-  version-preview:
-    name: Version Preview
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      pull-requests: write
-    steps:
-      - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          persist-credentials: false
-      - name: Setup Tools
-        uses: TanStack/config/.github/setup@190f659075ff0845850e330883eb26d7ffd0671f # main
-      - name: Changeset Preview
-        uses: TanStack/config/.github/changeset-preview@190f659075ff0845850e330883eb26d7ffd0671f # main