separated release workflow

Signed-off-by: Kharude, Sachin <sachin.kharude@here.com>

Author: Kharude, Sachin

.github/workflows/main.yml

@@ -68,11 +68,3 @@ jobs:
       run: |
         make draft_changelog
         sh scripts/build_docs.sh
-
-    - name: Publish package
-      if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags') && matrix.os == 'ubuntu-latest' && matrix.python-version == '3.8'
-      uses: pypa/gh-action-pypi-publish@master
-      with:
-        user: __token__
-        password: ${{ secrets.PYPI_TOKEN }}
-        verbose: true

.github/workflows/release.yml

@@ -0,0 +1,20 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    - name: Publish package
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+          user: __token__
+          password: ${{ secrets.PYPI_TOKEN }}
+          verbose: true