switch from bash to template approach for creating pypi config file (#6409)

Author: NoureldinYosri

.github/workflows/release-main.yml

@@ -26,7 +26,7 @@ jobs:
           CIRQ_PYPI_TOKEN: ${{ secrets.CIRQ_PYPI_TOKEN }}
           CIRQ_TEST_PYPI_TOKEN: ${{ secrets.CIRQ_TEST_PYPI_TOKEN }}
         run: |
-          dev_tools/packaging/create_pypirc.sh
+          envsubst < dev_tools/packaging/pypirc_template > $HOME/.pypirc
       - name: Build and publish
         run: |
           export CIRQ_PRE_RELEASE_VERSION=$(dev_tools/packaging/generate-dev-version-id.sh)

dev_tools/packaging/create_pypirc.sh

@@ -0,0 +1,7 @@
+[pypi]
+username = __token__
+password = ${CIRQ_PYPI_TOKEN}
+
+[testpypi]
+username = __token__
+password = ${CIRQ_TEST_PYPI_TOKEN}