Adds workflow file

.github/workflows/build.yml

@@ -0,0 +1,49 @@
+name: Publish Python 🐍 distribution 📦 to PyPI
+
+on: push
+
+jobs:
+    build:
+      name: Build distribution 📦
+      runs-on: ubuntu-latest
+
+      steps:
+        - uses: actions/checkout@v4
+        - name: Set up Python
+          uses: actions/setup-python@v5
+          with:
+            python-version: "3.x"
+
+        - name: Install pypa/build
+          run: >-
+            python3 -m
+            pip install
+            build
+            --user
+        - name: Build a binary wheel and a source tarball
+          run: python3 -m build
+        - name: Store the distribution packages
+          uses: actions/upload-artifact@v4
+          with:
+            name: python-package-distributions
+            path: dist/
+  publish-to-pypi:
+    name: >-
+      Publish Python 🐍 distribution 📦 to PyPI
+    if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
+    needs:
+    - build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/randalo
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+    steps:
+    - name: Download all the dists
+      uses: actions/download-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+    - name: Publish distribution 📦 to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1