ci: add release workflow (#120)

* ci: add release workflow

* Update .github/workflows/release.yml

Author: xrmx

.github/workflows/release.yml

@@ -0,0 +1,57 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  packages:
+    permissions:
+      attestations: write
+      id-token: write
+      contents: read
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - run: pip install build==1.2.1
+
+      - run: python -m build
+
+      - name: generate build provenance
+        uses: actions/attest-build-provenance@bdd51370e0416ac948727f861e03c2f05d32d78e # v1.3.2
+        with:
+          subject-path: "${{ github.workspace }}/dist/*"
+
+      - name: Upload Packages
+        uses: actions/upload-artifact@v4
+        with:
+          name: packages
+          path: |
+            dist/*.whl
+            dist/*tar.gz
+
+  publish-pypi:
+    needs:
+      - packages
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      id-token: write # IMPORTANT: this permission is mandatory for trusted publishing
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: packages
+          path: dist
+
+      - name: Upload pypi.org
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@ec4db0b4ddc65acdf4bff5fa45ac92d78b56bdf0
+        with:
+          repository-url: https://upload.pypi.org/legacy/