chore: import upstream snapshot with attribution

.github/workflows/release.yml

@@ -0,0 +1,72 @@
+name: Release
+on:
+  push:
+    tags:
+      - v*
+    branches:
+      - 'v*-release'
+
+permissions:
+  contents: read
+
+jobs:
+  build_and_test:
+    name: build release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: set up python
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
+        with:
+          python-version: "3.13"
+
+      - run: pip install setuptools
+      - run: pip install -e .
+      - run: make build-release
+
+      - run: pip uninstall -y transformers
+      - run: pip install dist/*.whl
+
+      - run: python -c "from transformers import *"
+
+      - run: pip install -e .[torch]
+      - run: python -c "from transformers import pipeline; classifier = pipeline('text-classification'); assert classifier('What a nice release')[0]['score'] > 0"
+
+      - run: pip install twine
+      - run: twine check --strict dist/*
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: python-dist
+          path: |
+            dist/**
+            build/**
+
+  upload_package:
+    needs: build_and_test
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    environment: pypi-release
+    permissions:
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
+        with:
+          name: python-dist
+          path: .
+
+      - name: Publish package distributions to TestPyPI
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b  # release/v1
+        with:
+          verbose: true
+