Cut 0.0.2 release and create GitHub action to publish to PyPi.

We are not using 0.0.1 because this version was already used by the previous
owner of the pypi package (https://pypi.org/project/jmp/0.0.1/). As such our
releases will start at 0.0.2.

PiperOrigin-RevId: 368598450

Author: tomhennigan

.github/workflows/pypi.yml

@@ -0,0 +1,26 @@
+name: pypi
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools wheel twine
+    - name: Build and publish
+      env:
+        TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+        TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+      run: |
+        python setup.py sdist bdist_wheel
+        twine upload dist/*

jmp/__init__.py

@@ -26,7 +26,7 @@
 from jmp._src.policy import half_dtype
 from jmp._src.policy import Policy
 
-__version__ = "0.0.1.dev"
+__version__ = "0.0.2"
 
 __all__ = (
     "all_finite",