Add bash release script [skip ci]

Author: adamtheturtle

admin/release.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -ex
+
+# Perform a release.
+# See the release process documentation for details.
+cd "$(mktemp -d)"
+git clone [email protected]:"${GITHUB_OWNER}"/vws-python-mock.git
+cd vws-python-mock
+virtualenv -p python3 release
+source release/bin/activate
+pip install --editable .[dev]
+python admin/release.py