Add publish wheel workflow.

Author: drazvan

.github/workflows/publish-wheel.yml

@@ -0,0 +1,29 @@
+name: Publish Wheel to PyPI
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version of the wheel to publish (format X.Y.Z - no "v"!).'
+        required: true
+
+jobs:
+  publish-wheel:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Download artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: nemoguardrails-${{ github.event.inputs.version }}.whl
+
+      - name: Publish package
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          verbose: true
+          password: ${{ secrets.PYPI_API_TOKEN }}
+          packages-dir: ./