CI: setup release artifacts build job and upload with trusted publishing

Author: dnicolodi

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: release
+on:
+  push:
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+    steps:
+      - uses: actions/checkout@v4
+      - run: python -m pip install build
+      - run: python -m build
+      - uses: actions/upload-artifact@v4
+        with:
+          path: dist/*
+  upload:
+    needs: build
+    runs-on: ubuntu-latest
+    environment: upload
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          merge-multiple: true
+          path: dist
+      - uses: pypa/gh-action-pypi-publish@release/v1